The best thing to do when you’re encountering old habits or past events is to embrace them and learn from them. The things you’ve learned out of that, you can then put into perspective and use them in the future so that you don’t make the same mistakes twice.
When you are able to do that, you are becoming a better person, not only for yourself but also for the people around you. Just never be afraid to use your talents and skills to get where you want to be.