I am very depressed and think about ending my life every day?

Let me start by saying that im 26 and a ex heroin user of over 10 years. My past drug use has rotted my teeth very badly.I am always in pain and I have a hard time eating most things and have very low self esteem because of it. And i have no insurance to help pay for fixed teeth. Most of the time I am a very happy person none the less and I love to laugh. But over the past few years I have come to notice that women wont date me because of my teeth and and my past. I even tried to rekindle my 4 year high school relationship with my high school sweetheart. She just wants to be friends not because shes dating anyone person just not me..... And I have just lost my job of over 2 years due to something that someone else did. I just feel like my life is a wash and the only reason I don't kill myself is because I don't want my relatives to have to pay for my funeral costs. Is there anything I can do to make the opposite not repulsed by my teeth and give me a chance so I can feel like a human for a chance? and not want to commit suicide?