Your Past Has Shaped You, But It Doesn't Define You
Just because you have (or have not) done something in the past doesn't mean you have to continue to do it that way in the future. It's up to you. You can change if you want to!
You CAN stick to your diet this time; start a new career; be in a loving relationship; be outgoing... whatever it is you want.
Don't let your past shape your future. You shape your future.