how common is it to just lose 200 elo

what the fuck. this keeps happening where i get to about 700 elo and now all the sudden i lost 20 games in a row. i literally cant stop losing. i think im an idiot. like im actually starting to wonder if im just stupid. ive been playing for 6 months now and im back at 450 blitz. what the fuck is wrong with me im not seeing anything and im playing terribly.

i thought i was a smart and logical person and chess has completely destroyed that for me. the emotional state this game puts me in is ruining my life. i feel like my rating is hanging over my head and i feel like a fucking idiot with everything i do.