Friendships

When I was in high school all I wanted was a circle of girlfriends that I could share all my secrets with, that I could spend all my time with we would be inseparable. Just like all the other clicks I saw growing up, but what's perfect on the outside is never perfect on the inside. I have had close friends come and go in my life some moving away and some because of really bad reasons like sleeping with guys I've slept with (smh still don't get that) but now I don't have one close friend to my name I no longer know how to open my self up to getting hurt. Can you be your own best friend and that be healthy?