The most important point is to not allow yourself to be attached to someone without healing yourself. Heart doesn't have a brain but you have one. Use it. When you find yourself getting attached to someone, catching feelings for them, step back. Introspect. Ask yourself if you're fully ready for the next level. Because you should be either fully in or fully out. Don't be stuck in between because that's not healthy neither for you nor the other person. Ask yourself if you still have anything to work on, if you still have a part that isn't healed yet. Don't step into the future with doubts and insecurities of the past. In that case you would waste all time and energy worrying about being abandoned or rejected.
Understand yourself well, build a healthy relationship with yourself so that relationships outside will flourish with love. Take your intuition wherever you go. Try to minimize your expectations. Be so fulfilled in your company that you care less about who stays and who leaves. And then after all the healing, you get better at recognizing who is your type. Who might be the one. Remember that no matter what, there's no guarantee of a person not leaving you. But there's no other way than putting your trust. Just believe in yourself that you will heal if someday they leave like others. Believe that you will do fine without them though it might hurt at first.
People will come and go. Stick to yourself. Whoever is meant for you will stick around.
