Depressed Because of Missing Molars - What Can be Done?

I have first lower molar(LEFT) extracted 6 months ago, and now the first molar rightneeds to be extracted too. The first upper molar on both side has root canal done. I am 32 years old female and I feel very depressed 'cuse of losing teeth at young age. I was born in country where people never see dentist until tooth hurts, so i saw one when I was 21 years old and 4 of the molars needed RC. The other teeth are in good shape. But I am a lot concerned about missing more teeth now. Please help.