ok first time posting smth here but i think theres smth wrong with me because i get soooo bored and tired masturbating or having sex even if it feels good??

like ok, i do get horny, i have a vibrator, i have sex, i enjoy it (more or less), all that jazz, i just,,,idk whats wrong with me i get sO bored after a few minutes and i just want it to be over with

its the worst when i masturbate because i get tired after just a little bit before ive even fully finished or anything :/

any advice/explanations?? pls