My dad has broke me down and I’m not sure how I’ll get through this.

So I am 19 years old my brother is 28. He’s my dads dream kid a football star who plays all sports and very well. I have tried my whole life to make him proud but im starting to feel that’s close to impossible. I am 20 weeks pregnant with a baby girl. My rainbow baby and love of my life. As most would probably know he essentially happy about it but since I found out I’ve been keeping on track with college and staying on top of my money making sure I don’t overspend or find myself with no money. He doesn’t talk about how well I’m doing he talks about how his teenage daughter got pregnant. I live with them because that’s really how our family works there’s no way I could afford to move out at this point but apparently neither could my brother he’s 28 with a college degree and still living at home as well. When he talks about my brother it’s all good stuff and when any family try’s to say something bad about him he’s right there to defend even if he knows he’s in the wrong but when someone goes to talk badly about my sister or I he agrees with them or doesn’t say anything. I’ve tried my hardest not to let this get to me but today I was pushed to the breaking point. I was in the store and ran across the cutest set of books. Now I had been looking for some that are the hard books so when my daughter is old enough she can play with them. I thought well their 15 dollars for 3 books I might as well. I walk over there and he about threw a fit about how he’s not buying no damn books and when I told him he wasn’t going to buy them I was his response was if you buy those books your not getting anything from me (he’s talking about my baby shower gift which would have been the stroller). I honestly broke down because I feel like this is the way it’s going to be I can do everything I need budget my money and have a little extra to spend on books or something and it won’t be good enough. This is how I’m going to live afraid to buy anything for my daughter because he’s going to lecture or threaten me. I have been saving up to try to move out but it takes time and right now I don’t have the funds to do that. I just don’t know what to do and I need advice.