I'm sixteen.

About 2 - 3 years ago I became really caught up in image. I thought I was fat 2 years ago, and now I'm even bigger and am dying to be the weight I was 2 years ago. I have no motivation. No support (Cept from my boyfriend). My grandma always bluntly says I need to lose weight and that my appearance is bad because my hair isn't a natural color (It's red now.), and how I need a job. She shuts down my dreams (cosmetology), and just is very judgemental and hurtful emotionally. My friends have lost contact with me, thank god one of them began talking to me again yesterday. My best friend just completely dropped me out of his life this month for no reason. That's what hurst me the most. The past week I've experienced high paranoia and restlessness. I can't get to sleep until fidgeting around in bed for 4 hours. I've kept my blinds shut for the first time in years because I fear that I am being watched or that someone is out to get me. I just have so many issues.

Should I seek professional help?