I'm honestly sick and tired of my life
Are you really? Why are you tired of life?
The more I think about it, the more I just know that people will be shitty and won't change unless I leave them alone
If you are really hating the way your life is going, there is always time to make a positive change.  You could try to make new friends or meet new people.  However, if you feel like you would rather not keep living, you should talk to someone right away.
Nah you don't get it
I might not, but I just believe that everyone has the chance to improve themselves! If you need help you can talk to friends or therapists, and your life is only what you make it. So I know you can bring forth good changes and have a happy life!