There's absolutely nothing that can be done about yesterday. If anyone has a problem with anything from your past then don't try to force the issue. Just let them continue to move forward in their lives as you continue to do the the same. As was stated in an earlier comment, you're 17 and have your entire life ahead of you. The most important thing you can do now is decide who you want to be(yes, that is a choice) and take steps everyday to become that person. Anyone or anything that falls outside of that doesn't need an ounce of your attention.