You sound like you have a really bad case of depression... asking people to be "nicer" isn't the right approach, sorry to say :\ that's life, it's not unicorns and rainbows, you need to learn how to deal with these things on a personal level, you can't go ahead and cry in the corner every-time someone says something mean to you.

Go seek professional help if someone yelling at you in a video game is causing you to be insanely depressed, that's my advice.

also, jumping into extreme fights with no knowledge isn't a very bright idea in the first place... I'm not saying you deserve to be yelled at but you're wasting everyone's time doing so. Would you fly an aircraft with no training? you wouldn't right? the same thing applies here. If you don't want to be a burden, attempt to research the mechanics a little.