Am I making too much of a big deal about my friend?

ok, I have dis friend Laura and she was one of my best friends since ii wus about 9. see, I have dis bestest bud called Sinead and she’s my absolute lyf! haha, but den we both started getting friendly wit dis girl Laura from our class. We knew her like, since we were 4 but we were’nt BEST FRIENDS. anyways, we started to be best friends, but then everything went downhill. when I was 12, I started to wear make-up. one day I went into school wit a bit on and she went ‘am, are you wearing make-up???’ and I said ‘yeah, so what?’ ‘ah, well, like… ok…?” laura was always a bit judgeental, but me and Sinead just ignored it most days. Then I straightened my hair once and she went like ‘ah, what did yooh do to your hair?” kind of, like, laughing at me. I was a bit hurt at this, so I told sinead. “yeah, she calls me dumb,” she admitted. it was a bit awkward then, then we both just started to spill out with the rude comments laura gave us. then one day, quite recently, laura walked up to me and said ‘sarah, do you ever think, of like, puttin cream on your spots?” and I was so pissed off. I told sinead, and she said that she had enough. but by then, we had gone on to secondary school, and sinead moved went to Hillford and I was in Carlsford with - yes you guessed it, Laura. So I didnt see sinead as offten as normal, mayb at weekends, but I didnt have her to defend me anymmore. Things got worse. Lately, I was sending random e-mails to Laura and in one I said ‘im gorgeous!’ Then next minute, I got an e-mail back saying ‘you are SO NOT gorgeous!’ tHEN next thing she pretends it never happend

So here im am, depressed. I hate every part of myself, all becasue of her.

So my question is, am I making too much of a big deal about it?

What do I do now?? HELP!!!