Often in life the thing causing the most anxiety and frustration is not particularly important in the long term. If you were to assess it in the grand scheme of life and death you’d probably find that it doesn’t matter as much as you think it does.
We tend to get swept up in how other people feel and what other people will think (in general but mainly towards us). We do this because we are eager to please, want to be liked and we convince ourselves that if we just try hard enough we can control what other people think and feel towards us.
But instead of getting swept up in other people, think about yourself. Have you even considered that what you feel and think is important too?
More to the point, maybe how you think and feel is actually the most important thing.