Mental breakdown, please help?

This may end up being a little long. But i will try to keep it to the point. Alright so i am a girl, age 17 and fear that i have some sort of psychological problem, or multiple. I have done much research and even took AP psychology this past year which may have put the wrong ideas in my head. Anyways, to start out with i get really frustrated when things aren't clean. My room is always spotless and i make my bed each morning, and when i see dust starting to develop anywhere i get in to an immediate cleaning mode. Some days are worse than others, but overall my family is kind of messy and i am always cleaning up after them. I have a routine where i go into the bathroom that i share with my two older brothers and i will sometimes literally get on my hands and knees and scrub the toilet and its surroundings. I have pet peeves with how the way the pillows are arranged on the couches in my house and if theres a table cloth on the dining room table i have to take it off because i just get bothered by it. Tonight i went a little crazy and vacuumed at 10:30 pm because i have been gone for 2 days. I also stuck post it notes around the house stating to "learn how to clean or else" now looking back at that i'm a little scared about myself. Theres other things that i do but i think i got to the point. Another issue i have is anxiety. i am not diagnosed with it neither have i really talked about it with anyone in a serious matter. I try to avoid situations where i know i may end up getting embarrassed. I literally sweat under my arms for no reason at all. I'll put on a shirt in the morning and by the time i get to school i have pit stains.i also hav really shaky hands and a fast heartbeat. At night its really hard for me to get to sleep, i get this paranoid feeling about death, and i feel like my heart stops so i am always checking my pulse. Its strange, i know. Also by the way i literally havent talked to anyone about my concerns, i am an overall popular girl and hang out with friends daily. People think i am a happy beautiful girl but sometimes i really feel like i live a double life. Not to be dramatic but its true. Two days ago it was my birthday and i hate the attention people get for it being their birthday..so much that i just get really annoyed, i told my family not to by me a cake yet they did...i just get angry about it not around my friends but a little to my family. i tend to keep these things to myself..so much so i woke up this morning and i literally couldn't get out of bed because i had such a hard time falling asleep in the first place and i just felt super annoyed for no reason. Sometimes me and my friends joke that i need to put a "do not disturb" sign on me. Anyway when i finally decided i better wake up and do something today i went to the kitchen to make my banana choc chip muffins that everyone loves (also i love to make others happy or impressed even if its out of my way) and i was half way through making them when i realized we were out of eggs. in a quiet,angry,annoyed voice i said "are you kidding me we dont have eggs?" to my mom and didn't let her respond i just dropped everything and walked to my room and slammed the door going to my bed and i just started crying. Sorry for that some what pointless story but im just concerned about myself. Some more things about me are that i have a fear of peanut butter, and nuts in general because im scared if i eat them ill get an allergic reaction, same way goes with medication and pills.Most days i try to keep myself together but there are at least once a week where i just breakdown, not in front of others but to myself. i have thought about suicide but then a minute later i realize how messed up that is and i know i would never take my own life. I just get so down and ignore my phone and try to cry but literally sometimes no tears will come. Are these things a normal part of being a teen or do i need help? Thank you so much if you took the time to read this, i really do appreciate it.