im not sure but iv been struggling with stress forever, im sometimes depressed, other days im fine, i get panic attacks alot, i cant evr sleep, i can be hyper at times randomly, some days i feel im doomed for failer others i feel on top of the world, and i have thoughts of what it will be like when i die. does this sound bipolar?

here is a conversation i had today.

i was in my room hanging up a MCR poster when ashley (my sis came into my room with out knocking.

Ash: hey, weres mom?
me: i dont know why didnt you knock?!
ash: the door was open.
me: doesnt mean you can just come in. i knock on your door wether the door is open or not!
ash surprised k geez.

then she left. i got mad because i like mcr and ash picks on me for it from time to time so i didnt want her to see me with the poster.

then we were in our bathroom cleaning and i started to talk to ashley about a patch i was gonna make and she thought t=it was awesome, so i was all like'awesome!' and all happy. then i was thinking wait why ami even talking to her i just yelled at her like 5 minutes sgo... oh... well i guess.

then i started to feel stupid and sad cauz i probably looked kinda stupid. but know that i think about it i dont think she cared.

am i bipolar or just random? help me