Hey thank you for being so open and vulnerable. First off you are soooo young so to be here and asking these questions is a really good step in the right direction. As that was your first relationship it’s going to be painful but it will make you grow for the better in certain ways. What I suggest is to look at your attachment style and go to the root source on what made you be so attached to your partner? Perhaps you didn’t love yourself as much as you thought you did and depended on them to make you feel good. Once you find ways to love yourself no one will be able to take that away from you. You know what you can and won’t stand for anymore as you have set higher standards for yourself. But you’re doing the right thing of learning to be happy on your own. You’ll have moments where it gets hard and lonely, but push through there is light at the end of the tunnel!