There are many ways to start practicing putting yourself first and it may be hard at first, you may even lose some friends. But, anything that you lose by putting yourself first was not meant to be in your life. Make sure your cup is full first before pouring yourself into others.
There you were, wanting to be in a relationship so badly, you didn’t even realize how unhappy you were. Waiting on something magical to happen that will confirm all the fantasies you had about the person you’re with. And they never came true.