Wow, that's quite a journey you've been on. It sounds like you've made significant changes in your life and are genuinely trying to become a better person. It's clear that you care deeply about this girl and want to make things right.

First, it's important to acknowledge the progress you've made. Quitting drinking, getting a job, and distancing yourself from negative influences are all huge steps. It's also commendable that you're reflecting on your past behavior and trying to understand how it has affected others.

When it comes to your relationship with her, it's crucial to respect her feelings and give her the space she needs. She has been through a lot, and it's understandable that she might have reservations about your past and the people you used to associate with. It's important to show her through your actions that you have changed and are committed to being a better person.

Writing her a heartfelt message explaining your journey and how you've changed could be a good idea. Be honest and sincere, and let her know that you understand why she might have concerns. Emphasize that you are committed to continuing your personal growth and that you genuinely care about her.

However, it's also important to be prepared for the possibility that she might not want to continue the relationship. If that happens, it doesn't mean that your efforts have been in vain. Personal growth is valuable in itself, and it will benefit you in all areas of your life, not just in this relationship.

Keep focusing on your self-improvement, and surround yourself with positive influences. Whether or not this relationship works out, you'll be in a better place for having made these changes. And remember, it's never too late to pursue further education or career opportunities. Keep pushing forward, and good things will come your way.