YOU CAN DO IT!! Good Luck!! I'll cheer you on from afar. I think what you're doing is great. It will definitely suck at first, but it will get easier. Just don't give up. Just keep reminding yourself that your health is worth the effort, and you are worth the effort.
I had to make some changes to my own lifestyle a while back because I really was abusing my body and being completely unhealthy. It was really difficult and it took a while to make it into a habit, but I have come a long way. If you ever need a pep talk, Gchat me!