GOOD LUCK. A competition would be the ultimate end to an amazing journey for you, and possibly a new start to something else.
Yes you should be proud of all your effort. You made some beautiful changes, and I think you'll be a great competitor, and in my eyes, if you could prep, compete, and get placed, you could call yourself an athlete, whatever happens.
Your ana amazing person Boopster, you deserve to feel so proud of yourself.