Sometimes you just have to move on! I am not being rude but I am in high school and last year I dumped one of my oldest friends because she starting being very very mean and beating people up that "friend" that I dumped last year was terrible to me since fifth grade and I just did not have the guts to dump her so in freshman year I dumped her and I could not be happier. Sometimes in life we just have to move on. It is part of growing up. You will see oneday maybe it will take you until highschol to realize you can decide for yourself with who you want to hang out with. And even if she is your oldest friend..., you do not have to be with someone just because you where friends forever. Eventually she will make you so miserablw you will hate yourself. Trust me I learned the hard way.
I hope things get better for you.
And please stay with your good friends! Xoxo lily!
P.S. You can always write dear lily onca new post if u have an question ok?