Please help fix my teeth!

Hi, I am looking for some help towards the cost of getting my teeth fixed.  I am an 18 year old boy and at the moment I am in urgent need of dental work.  I have had 2 accidents in my life that have broken my front teeth. When I was about 8 years old I had an accident at a skate park and broke my three front teeth off about half way down.  My teeth were fixed over the years and it was a long process.  I was happy with the appearance of my teeth, until I had another accident this year.  I faited due to heat exhaustion and again broke my front teeth and two side ones as well this time.  My teeth have become discoloured and don't look very good.  I am trying to get a job but I am very self conscious with the appearance of my teeth.  I feel like the appearance of my smile is really holding me back.  I would really appreciate any help that I can get as I am on a low income and just can't afford to pay the dentist bills at the moment.