I remember the 23 year old me thinking that all I had going for me was my female body. I hadn't found who I was yet. I'm way more interesting than just a body...and even my body is better now at 34 than it was at 23. I was cute at 23 now the word I would use (when I put the effort in and pull myself together) is stunning. If your bf was just with you because you were a pretty face he wouldn't be sticking around. He sees more in you that maybe you haven't seen in yourself yet.
Everything will be ok in the end. If it's not ok it's not the end.