Self contious symptoms and conditions

I am 16 years old and i have an orbital inflamatory psedotumor myositis, which causes me to see double. It is a condition the doctors are kind of just playing a gussing game in how long i will have to take the steroids. Everyone is different., i have been to many doctors and they have described it to me as an autoimmune disease within my eye and not my whole body. I was put on 60mg of prednisone. I have been taking it for over 3 weeks now. I was sapost to be symptom free within 2 days, but it took me 9 days before i noticed a difference in my vision. I am going on my fourth week now and still see double but not as bad. The prednisone has been absolutely awful. i handled it farley well the first 2 weeks and since then it has been pure hell. I do get bad mood swings,and i really don't mean to act the way i do. People i was once really close to don;t want to be around me anymore. Mostly i think i am frustrated with the acne it has given me. I am completely plastered now all over my face neck and chest. It is really embarrassing. I just wish other people realized how frustrating it is. Its like i wake up every morning and take an UGLY pill. I am really self conscious to begin with and was actually feeling pretty good about the way i looked until i had to start this medication. It really does suck. I can't even imagine what some of you are going through right now after reading everyones stories. My heart really does go out to everyone who has to deal with this, and i will pray for all of you. If any one has the same diagnosis as i do or knows anything about it and how long it takes to be treated please let me know. I am begging to worry because i don't think the prednisone is going to work for me. the doctors are thinking about putting me on methotrexate which i am also concerned about but it is not sapost to make you break out which is really all i am worried about right now. I have already back down from prom after working my but off to pay for my dress,and i really don't want my summer to be ruined. i wake up every day and want to hide in a whole were no one can see me. going to school is really hard to. The girls love to make fun of me and the guys are just kind of turned off from how i look.
How long does it take for the acne to go away after getting off the prednisone.and does it go away as you taper the drug down? also how long does it take before most people develop a moon face? i have a range of being on prednisone anywhere form 2 months to a year. There is a possibility that i will never be able to be off of it.