Need an advice, please!?

You seem pretty mature, at least more literate, than most of your peers. Give yourself a break, you've been through a lot, you're allowed to feel sad and grieve. But it sounds like you're picking yourself up and doing all the right things - making new friends. Most people are good people. I would stay away from men for awhile - you've got plenty of time. Make some solid girl-friend relationships. You need them to lean on. Do things that make you happy and that you are good at! That will increase your self-esteem! Get good grades! That will increase your self-esteem. Plan on going away to college - you can get loans! College can be a whole new start for you!