I don't think that I can trust anyone I know
What caused you to be so distrustful?
I don't want to think about it, I just want to declare it.
You should do your best to learn to trust others. It will be difficult to form pleasant relationships without trust, so do your best to find people around you that are trustworthy. If you feel the people closest to you right now are not trustworthy, then talking to them about it may help you understand why you feel this way.
What do you do when once you learn to trust others?
Then you can try to make meaningful friendships and relationships! Trust is also very important in the workplace, because everyone has to get along and cooperate.