Seeing my mother cry makes me incredibly sad.
Why does seeing your mother cry make you so sad?
Because it makes me want to have someone in my life that cares about me like I care for my mother.
I know that it is painful to see your mother get attention when she's sad, but you shouldn't make that moment about your needs. Take charge of your life and get the things you need on your own.
I want to but I don't know to change myself and get what I want.
You should talk to a therapist about your issues and they can help you work through your issues. You can't change your life if you continue to pity yourself. Talking to others that can give you constructive feedback will help you to make the important changes you need to improve your life.