If your like me, you've been brought up to believe getting "angry" or "losing control" is a bad thing but part of self-respect is learning to respect yourself and how you feel. We're made to feel afraid of getting angry at authority figures because we feel we will get punished for it. But our emotions are part of how our brain regulates itself, and anger can be very useful to establish a sense of boundaries when we feel others have violated it. They aren't necessarily "bad" thoughts or feelings if they are a proportionate response to the situation and you are not a "bad" person for thinking and feeling that way.
My relationship with my parents isn't great but we manage to "work through it". That often means me holding stuff back or outright lying about how I feel so we don't have rows or threaten to make me homeless and throw me out of the house as has happened in the past. My dad in particular is very anxious and susceptible to sudden mood swings. He doesn't like "conflict" and tries to bury the sources of disagreements by not talking about. My mum tends to just simmer for long periods and makes the room toxic to be in if she doesn't like what's going on. Its not healthy but there aren't many alternatives available than to try and give myself some space sometimes.
Find somewhere you can go that is safe away from your family and friends and let off some steam. Get Angry and let it all out. Sometimes writing it out can be enough because you can really think about what you are writing and why. That can sometimes be a healthy response to a situation. I find this works for dealing with the "deadening" feeling because if people around you are making you feel like crap, you can allow yourself not to take it and to stand up for yourself, even from people who say they care about you and have the best of intentions. Good relationships work because people talk to each other and respect each other. Its the fact that this feel "out of our control" and feel trapped that makes the deadening feeling difficult to deal with.
I can recommend long walks or taking a trip out for a day to get away from the pressure. Sometimes just getting out the house is great as it can feel a bit like a prison. I have favourite spots to go out and eat which usually cheers me up (even if I do try to eat healthier nowadays

). It won't solve the underlying problem but it can make it easier to deal with.