Baby is 3 weeks

My five weeker is going through the same thing right now! Nothing you’re doing is wrong, from what I’ve seen they go through a growth spurt right around this time and need to cluster feed and just fuss to fuss. I would bet that your baby is just overly tired (mine as well) and it’s such a frustrating thing to deal with! I had to reframe my mindset when it comes to cluster feeding that this is just what he needs right now and it won’t last forever. Bath before bedtime usually helps knock him out and on the non bath days I’ll put his feet under running warm water to try to soothe him. I also just hold him for longer than I think I need to when he’s falling asleep so that he gets into a deep sleep before setting him down for bed. My baby also has reflux so I hold him upright for 15-30 mins after each feed. I totally understand how you’re feeling. You are doing great and are a great mom!

Sometimes babies are just inconsolable! You’re doing all the right things. Sometimes I’ll get so frustrated that I start from square one which is diaper change, feeding, burping, and cuddling to sleep lol that’s all we can do is meet their needs and as long as you’re doing that, you’re doing great!
Also just wanted to add that around the 3 week mark for me my baby really started experiencing gas and reflux. Sometimes they just need to burp and can’t get it out. If you put baby over your shoulder you can usually get a good burp out of them :)
I think you’ll be surprised how sleepy and comfortable they get after a bath and a good feed. Let me know if it worked better!