How do I stop being depressed?

"Before आप diagnose yourself with depression या low self-esteem , first make sure
that आप are not, in fact, simply surrounded द्वारा assholes."
- William Gibson
From what I've heard, आप have a really unsupportive group of people surrounding you. No wonder आप feel so low. It's definitely hard to remain happy, optimistic या positive when negativity surrounds you. First try talking to your parents. Tell them politely but firmly that आप think your brother's antics are going out of hand and to take matters into hand when his antics are starting to get nasty. Of course, a little bit of sibling fight is healthy, but as long as matters stay in hand. And for those people, who are making आप feel bad, ignore them. They just won't be able to feel good about themselves until they hurt somebody. Sometimes if they get that their cheap mindgames are not breaking through to you, they may drop it. But if आप find that, with every time आप remain silent their bullying increases, speak up and give them a peice of your mind so that आप will able to sleep well and peacefully at night.
And as a last resort, try moving out as soon as आप can and try hanging out with a new group of friends. Hope everything works out for you. Good luck :)

Well actually I had and am facing similar depression from past 2 weeks. Yesterday I cried all दिन because of a person.

But आप know what crying for people who really don't care about आप is a waste of time and I have realized it. If your parents don't care about it then don't cry like a coward and just let them know that if they don't care आप won't care about them too.

A tip as your फ्रेंड्स bully आप (they aren't actually your फ्रेंड्स then but your enemy) ignore them, be और confident and read inspiring books, engage your self in संगीत (it will give आप relieve) and instead of listening sad songs and cry try to listen pop songs and enjoy them. हटाइए out for a walk when आप feel आप are loosing your self and enjoy nature.

फोटोग्राफी is a good way to express your feelings to the world. आप can write a diary so that there'll be someone whom आप can tell everything.

Paper is और patient than people and they won't share your secrets या make fun of you. Plus लेखन diary in English will improve your लेखन and speaking skills. आप can always use a dictionary.
Don't hurt (physically) your brother back as maybe it could make the situation worse. Because he could attack और violently.

And feel free to talk to me anytime आप want. I will listen to you. Because I feel strangers can understand your या mine problem better than our close persons.

Be Positive ^_^
Lots of hugs