Bad ancent.... need help?

hi! there i was born in Sri lanka and i live in asutralia now. i have bad ancent and im sick of repeating things to people because theye didnt undertstad me and also this also makes me shy and not wanting to talk to other people or involve in converserions. can somebody please help me..... is there any cless or any heling guide that are available or is there any websites that will help me.... please help me .please