My emotions are so momentary

like,,, i can be super upset abt some

thing and then start watching a video and think it's the funniest thing in the world and it actually makes me happy for a little and then i just feel like shit
and if im hanging with friends i can be having a blast but then if no one talks for more than a few seconds i start being miserable like "i bet they all rlly hate me i want to die" but then when the conversation starts up again i just forget all that emo stuff again
also i can't hold a grudge bc i cant hold onto anger for that long so if someone pissed me off they could just make me laugh and i forget im mad which is not always the best
like i guess it's good bc my default emotion is depressed so i can get easily distracted from it like im never so upset i wont laugh at something super funny bc i will just momentarily forget anything besides the Funny Thing and start laughing and be amused before eventually i remember im miserable
idk idk i guess i just want to be able to hold an emotion besides misery for more than two seconds. sorry i just wanted to vent abt this.