You sound unhappy and discontented, yet wanting "a whole new life" - so sounds like there are some things that you would like changed.
If you could experience some changes - what might some of them be?
When you're noticing that you feel negative about various people - is it helpful to consider the reasons for this? And then if it is quite unpleasant to be around them, then try to allow some distance from them, so that you can feel happier in a changed environment or atmosphere. Find those places and people where you feel more comfortable.