To succeed in achieving your goals, you have to accept that it will take take, you have to understand that you have to discipline your feelings, yourself and do what's right to do in order to achieve your goal and not what you feel like to do. Be patient and keep going.
Nothing happens easily, you have to work for that. You have to educate yourself. You have to understand that if that guy or gal succeed in achieving her /his goals, then you can succeed as well. You just need to think about how to do it. Make a plan and stuck to it.
Don't be stopped by your past or your current problems. Even though, you failed in everything that you did in the past, you have to keep believing that you will succeed and never stop trying. We are all equal, we all have 24hours/ day and we all have a brain. We don't need anything else, just DISCIPLINE and BELIEVE in yourself.