Stepdaughter acting out?

So my step daughter just finished preschool and her mom and her step dad moved shortly after, I don't want to be overreacting but she been potty trained for 3 years now, and she is having accidents, and last night according to her mom she decided to pee in a bucket and poop in one of those play kitchen sinks. As embarrassing as it is to admit it's what happened. Her father and I got married back in August and her mom and her step-dad got married in September this last year. It could be a regression from everything but I can't help but think in the back of my mind something else deeper is going on. Any advice?

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Mother

The house is quiet.
Finally, a moment to myself.
I sit on the couch, expressing milk for his next feed.
Time circles my mind.
Do I have enough time to write this?
Should I sleep instead?
It’s getting late.
I should be grateful.
I should be present.
I should… I should.
The guilt.
The intrusive thoughts.
The disconnection from self.
The robotic washing of bottles, clothes, and dishes.
Then the question returns.
Do I have enough time for me?
What me?
Who am I?
Where am I?
I miss her.
I miss me.
Who have I become?
I have become a mother.
I am everything to this little human who will one day call me mum.
His life depends on me with every waking moment.
I give.
And I give.
Then he smiles.
And suddenly I see him
the little human I have nourished with tired eyes,
with time,
with love stretched beyond capacity.
Sometimes I leave to rest.
To breathe.
But even then my mind returns home.
I should be there.
I should be caring for my baby.
Is this normal?
Am I normal?
I feel myself unbecoming the woman I once knew so well.
They say this time is sacred.
And it is.
But it goes fast.
Maybe because we are not fully here in these early days.
We are surviving.
Living on autopilot.
Days blur together.
Until suddenly he shows me something new —
a smile,
a look,
a tiny trick he has learned.
And that moment is priceless.
His beautiful smile.
His big, beautiful eyes.
He is beginning his life
as I share mine
to keep him thriving.
A sacred sacrifice.
A whirlwind.
A shift in reality.
Who am I?
I am mother.

Am I wrong for getting upset?

To make a long story short, we were added to a group chat for all the bridesmaids and groomsmen to plan the bachelor party to go to Vegas. So very been boiling about this all day.
I sent one message about finding a babysitter for my kid, and she messaged me privately with a very backhanded comment that I should not discuss anything regarding my son because her husband’s friends do not give a shit ….. as if I am supposed to cater to their interests…. This is my cousin by the way, she only has me, and her sister for family at her wedding the rest are his family and friends.

I really hate to come out here and tell my business about what’s going on with my life in my kids, but I had no choice

I just came back from a parent teachers conference meeting and they telling me that my second daughter, who just turned eight about a week ago that she barely know how to read and she has speech problems… I already feel like shit because it’s not that I’m doing my job. It’s because I worked a lot, and and every time, me and my first oldest daughter, trying to teach you how to read, she gets insecure and thinking that we making fun of her, but we’re not!! I felt like a shitty mother I don’t know what to do.

Am I overthinking this ?

Am I wrong for feeling some kind of way from my husband wanting to put my 2 yo daughter in daycare he always brings it up. But mind you I’m a stay at home mom. And my daughter does learn now she’s not getting no 3-4hr learning session but the thing is she knows all her alphabets, she knows her numbers from 1-20, and she knows a good amount of animals, and she even knows a few sign language that she caught on from Mrs. Rachelle at 1 yo ! She’s very smart and picks up on alot of words pretty fast. But knowing my daughter she doesn’t have a long attention span so I do what I know how she’ll learn best, she learn through music, we watch videos, and I physically show her and question her. But sometimes I feel offended when he brings up she should be in daycare around other kids learning as if I’m not with her everyday .

My mil is the reason I see my husband as less of a man

LA little back story, my mil got a new bf last year and a month into dating they insisted he be called grandpa. Fast forward to a few months ago mother-in-law and her boyfriend‘s behavior has turned nasty after father-in-law has come back into the picture. After mother-in-law and her boyfriend’s behavior at family events, such as my son’s baptism, my Christmas party and my father’s Christmas party, I told my husband to tell his mom that her boyfriend is no longer to be called Grandpa. fast-forward three months and he still hasn’t told her because he doesn’t want to upset her feelings. Now her bf wants to bring his son over to my house to meet my kids or his “grandkids” and they didn’t ask my opinion. I told my husband how I feel about it and he’s not telling her no because he doesn’t want to upset her. I’m starting to see my husband as less of a man because of his mom and putter her above me.

Am I over reacting? What should I do?

Husband is happy with only one kid, not me

We had another conversation about it tonight. We had our beautiful daughter 10 months ago, he is very happy to have her and totally in love. But he has personal/financial goals and is happy the way things are. He is looking forward for her to be a bit older and to be able to share more with her.

Me on the other hand am very sad about not having a second baby. I always viewed my life with two kids and am an only child and it seems I would have loved to have a sibling. I know kids don't always get along but me and my husband are both only childs... And I feel it would be great for her to have a sister or brother to share life with.

He says he is 90% sure he only wants one and I keep getting my hopes up on basically nothing... Did anyone go through something similar ? What happened ? And are you happy with your decision to have one more or stop at one ?