I have a 1 month old and I'm considering divorce

If it feels right to you, then yes. I made the same decision for the same reason when my daughter was about 9 months old and actually moved out when she was about 19 months. Her dad and I have been splitting custody and I am in a muuuuch better place now, so I feel like I can be a better mom for her. And as far as she’ll remember, it will have always been this way. Ultimately, I decided that I didn’t want her to think “love” and a healthy relationship look like what she was seeing between her dad and me.

We divorced when my son was 1, and it's best for all of us.
People will say you're hormonal etc but the earlier you do it you can be a more present parent and they don't remember and that's easier if you are coparent or not. It means conversations when they are old but it just is and that's easier than when they are older and have big feelings.
Especially if you've known a long time.

Good luck whatever you decide.