I have meth mouth and no confidence?

Just don't get discouraged. I'm a big believer in the squeaky wheel getting the oil proverb. Look at Ted Williams, homeless, alcoholic and how positively America has responded to his plight. People easily forgive what you've done in your youth. If you have the humility and fortitude, and you do, you can summon them from deep within yourself, start visiting dentists and begging for their help. Eventually you'll find one who will do the work you need either out of kindness and pity or a 'paying it forward' kind of thing. Just don't give up and doors will open for you. Maybe you can decide now that if you get your teeth fixed and get well that you will spend the rest of your life helping meth addicts get clean. Your life will have a purpose and people will help you every step of the way.