<human>: Summarize the given text in a few sentences.

So, here's the thing. I've always thought of myself as a generally cheerful person and that's the thing I've been known for - being a nice person, smiling a lot, laughing and being very easy to be around.

Lately I've noticed I'm not too much like that anymore. The last year or so has been a super stressful one, and I had this epiphany one day - I'm generally pissed off all the time. All the time I'm annoyed because someone did or said something that annoys me, or I'm taking everything as a personal insult. It's like I'm suddenly not able to let even the smallest things go, I have to make a huge deal out of stupid things and be very butthurt about everything.

I know there's been a few situations and people that were too much, and I've taken care of those problems - you know, made sure that people who weren't willing to treat me right aren't near me anymore. I've also been going through major changes in life, and there's still some to come. 

I don't like me like this; I don't want to be the one person who's always complaining about something and isn't able to see any good things that come my way. What can I do? It's like a habit I picked up some time ago and it's reallly hard to let it go. How can I do err, some sort of personal anger management before this gets really out of hand?
<bot>: I'm very mad at everything and everyone and unable to see the good things. Please help me before I really get myself in trouble and destroy all my relationships with the people I love.