Labor and delivery

This is a few questions so I can prepare myself mentally a little bit before I have to deliver. So when you are pushing they say to push like you are pooping is that correct? And when the baby is born what does delivering the placenta feel like and do you have to push it out or does the doctor kinda pull it out.. also when you are being stitched up if you tear what does that feel like.. all the tips I can shove in my brain rn and kinda try to mentally prepare will be great! I’m trying not to panic but I get so emotional to think about me actually having a baby. This is real I’m going to be a mom it feels so weird to say that bc I don’t feel like I’m going to be.. it just feels weird when people call me “mommy or mom” like WHAT! Is this possible lol! FTM💕