Look at yourself from another's point of view. If you want friends, you have to first be a friend. If you want respect, you have to show respect. If you want love, you must first learn to love, then do it. Being thankful for your life is hard sometimes, especially if you've had a hard life. But it is up to you to make the change. Forgive those who have done you wrong. By not forgiving, you allow them free rent in your mind and heart.
I suggest doing a self cleanse of body and heart. Do this until you are cleansed of all negative. Carry hematite, as this black crystal will absorb any negative. Carry clear crystal to protect you, and to remind you to clear up anything that is keeping you back. If you want change, be the change. Sounds easy, but one step at a time will keep a pace that you can accomplish. You are alive, and you do count! Open your eyes to the simple surroundings that is called life. Start with being thankful for the beauty of this earth, and the gift of Her to take care of us. And do take care of Her. You will surely be rewarded.