popup: Avoiding your feelings and trying to ignore them or cover them up with other things in your life, only makes them come out in other ways. If you have a Rav, mentor, therapist, friend, anyone you can talk about it with non-judgmentally, that might help you feel better.
If you are truly upset about something specific, perhaps ask advice on how to tell the people who upset you about how you feel without being confrontational. People don’t generally mean to be hurtful, they just don’t realize how their actions impact others, and will generally feel bad if they realize how much it hurt you, even if they can’t do anything about it.