Don't worry, it's a nice time, a special time. You will adjust, as every new parent does. I had two babies - my first was a bit of a tough cookie. I breastfed him - he was a hungry baby so wanted to be on me all the time. It took me a while to get him into a good sleep routine, and even now (he's 6) he still wakes up at least once in the night!
My second baby was a lot, lot easier. I went straight to bottle with him & I'm glad I did because he was a pudding. He slept well, because he was always nice and fat and full of milk, and was generally a happy contented little baby. Even now, he's easier to handle than the older one. I was also a lot less anxious the second time around. I wasn't as worried about everything so I think your first baby is the one you cut your parenting teeth on. But again, don't worry, because all babies are different.
Also - I would return to the feeding side of things. For me, breastfeeding was a right pain in the ass, it worked but I didn't really enjoy it like some mothers do. It took a lot of work to get him to feed properly in the first few weeks & that is something I just wasn't prepared for. I thought babies came out and then automatically latched on and begun feeding, and it would all be peaceful & lovely! The reality was very different! That's why I went straight to bottle with my second and he was so so so much happier for it. I think personality has a lot to answer for but also babies like to be full of milk, and then they'll be contented and sleep!!!!
So if you decide to try breastfeeding & it doesn't work for you, don't beat yourself up about it. It's not the end of the world - it works for some women & not for others.
Congratulations & enjoy your little one
xx