I had no problems with my 2 sons. My mum had my brother just 4 years previously and I'd observed and helped her with it all. So nothing was a shock, just what I was used to and expected.
But I'm a homebody, never had the need to socialise much and so being at home with children each and every day never bothered me. I didn't feel trapped, it was what I wanted to do. I worked when they slept, not difficult, and even did some decorating while they would like watching me [I would talk to them a lot while doing it!]
In the very early days my DH didn't do night feeds [responsible job] so it was left to me, and I'd feed 11pm, again at 3-4am, nappy change, then me and baby would go back to sleep. [Cot in bedroom initially, but they never slept in our bed, ever, then in own bedrooms at about 7-8 months]. Started the days with a feed at 7.30-8am...
Maybe I was lucky but it was just a routine of feed, nappy change, play/bouncy chair etc, out in the pram/pushchair at some point in the day, sleep...repeat. Grizzly time was 5-6pm ish and a bit restless in the evening before they crashed out. After 4-5 months night feeds stopped and they slept like logs after that...until present day!
Both easy babies, one a bit more fussy than the other and he needed more reassurance/interaction. He would spend periods of time in his bouncy swing watching me work [liked movement]. His brother was chilled, he would lie/sit playing happily in his cot/chair/pram for ages with his toys and I'd be nearby able to get on with whatever I had to do. Probably more peaceful there than when his brother was on the loose.
In my experience babies are either hungry, wet, dirty, too hot, too cold, want to play/attention/cuddles or are tired when they cry. Just see to their needs. I do realise that babies with digestive/health problems will be harder work and I completely sympathise with other situations.
Good luck OP. You will be fine. Most people are.