My best friend is coeliac, she was diagnosed when she was 21 after years in and out of hospital. She’s now 48 and has managed to control her illness very effectively. She’s a teacher (and retrained in her 30s) with 2 teenage kids and is heavily involved in the Guiding association. I think what I’m trying to say is that there is the possibility of hope you can control this and have the life you want.