Adjusting to mom life 😩

I’ve always wanted to be a mom. I thought I had done all the research, took all the classes, babysat for years and thought That would all help me fall into the groove of motherhood a little smoother. But nope I am so lost. Can I just have people give their raw and honest answers to this please? What did your life look like when your baby was 4 weeks? How did you feel mentally/physically and how did your baby act? My son is 3 weeks 5 days and I don’t know some days I feel like I’m doing great but for the most part I just feel like such a hot mess trying to adjust to this. I never feel like I’m doing the right thing, I feel guilty all the time for literally the stupidest things like wanting him to go to sleep so badly but then at the same time worry that he’s sleeping too long or worrying because he’s not waking up right away during a nap if I try to wake him, I worry more than ever about absolutely everything, my son has been super fussy all of a sudden this week. I guess I just feel overwhelmed and I’m wondering does it ever get better? Lol