Imagine you have a wire on your hand and you want to plug it to an electrical outlet that's on the wall right in front of you. You technically have all it takes to plug it. What if there's so much garbage between you and the wall that you can't reach to the electrical outlet? You can't plug the thing no matter how hard you try. Not that you're lacking something, but rather that some stuff gets in your way.
Emotions do get in the way. Some you may understand, some you may suspect, some you may not even be aware of. This is very common and you can work on these issues.. but probably not by yourself. If you decide that you're okay with discovering what's going on that you're not aware of yet (there always is some things we're not aware of), then a trained psychologist can help you a lot.
Oftentimes people suggest technics, tricks and whatnot to get around the symptoms. Maybe it's best to face the problem, understand it and fix it not with guilt but with kindness.
Good luck on your journey.