Quit now or you'll be get hurt

Have you ever feel that you don't know what you should do
or maybe you know what you should do,  but there's another things messing up your mind?
One things is about your future and the other thing is about something you can't resist not to think about..

For some people.. having an interaction with someone they like can be a happiness
what about if that interaction give you the signal to give up this earlier?

It's like some kind of destructive action which can alter you to the same hole.

Is it time to me to quit or i must wait and let everything happen?

My head says: "no, you will getting hurt again." but my heart says: " why not you see what will happen to you. he's something worth to wait."