I let things others do bother me too much?

I am EXACTLY the same way! I take everything way too seriously and let it get under my skin. What I learned though, is that if there are friends who're constantly making you feel this way, you should try reaching out to other people and finding ones who understand you more. :) If you're absolutely positive that these are the friends for you, take 10 deep breaths and don't focus so much on their flaws- sure, friends can be effing ANNOYING- but they ARE your friends for a reason.