How do i fight the emotions inside my own mind?

How can a person fight the feelings they feel when they are being pulled a million different directions by there own mind?
A part of me wants to move on from my past find love again be happy again I long for that but another part of me is so scared of getting hurt and rejected again that I push everyone who gets close away out of fear. What do you do when you are scared to death of being alone the rest of your life but you also are scared to death to try to open up enough to even try to take a chance on loving again 😟