Understanding of belief

Beliefs are things that people acquire by the facts they encounter in their life. It’s like a filtering scheme. Your mind filters the things that conflict with beliefs of a person. If you trust a person and he lets you down you make a belief that you can’t trust him and if another situation like that happens then you will think that you can’t trust anyone. Right? I don’t undestand meny things in people. I’m so confused. Everything in me changes so fast. Feeling running around like fireballs through my heart. I can’t understand meny things. I don’t know what the truth is. I don’t think I’ll find it. I don’t believe in anything. Why is it have to be like this? Why does it have to hurt so much? I’m looking for an explenation everyday and it seems to get worce. I find things that I’m not quite sure of. My mind is a mess, but it’s better than to have no doubts in the world around you. What does confidence do? I can answer that. Confidence is a believe in your own powers and alot of people have it and lie to themselves and also to others by accident. I have it too. It seems that I don’t understand anything anymore.