How do i convince her shes more than worth me (girls please)?

Me and my gf broke up she said it was because she thought we weren't compatible but she later told a female friend of mine that it was because she thought I deserved better than her. See I don't drink smoke or do drugs I have a bad past because of my fathers choices to do that stuff i decided at an early age to not do any of that. But she smokes and drinks and used to be a huge stoner ( she quit before we got together) and has a drinks and used to be a huge stoner ( she quit before we got together) and has a history with harder drugs (cocaine) she quit that too before the weed though. And she said everytime shed drink or get drunk shed feel like she was dissappointing me even though I told I know a lot of people cant live the way I do and that I don't care if she drinks. But she's the first gf I ever had that I cared about she's an amazing person and she made me so happy and I'm lost wthout her. We decided to stay friemds but we haven't talked in a little while because I dont wanna seem desperate and push her away. What I'm asking is how do I get her to realize she's worth me way more than just enough and that I want to be with her still without seeming desperate and push her away. What I'm asking is how do I get her to realize she's worth me way more than just enough and that I want to be with her still without seeming desperate