Pain in tooth. Like root canal.

Hi, I am having toothache since a long time, have been taking painkillers since I am terrified of dental treatments. Had root canal on 1 teeth, whose crown has fallen down since quite a few months, have a wierdly oriented tooth next to it on the left inner side and also on the right inner side down, having toothache and root canal is needed. I live near forum mall, koramangala and suggestions from any doctors nearby will be preferable. I am too scared of the process as I have been through it one time and cant imagine going for it again for dont know how many teeth. Also, there's a slight mark on my front tooth and if it can be removed easily then I will be grateful. Also, I want some doctor who can understand my medical insurance and try to cover maximum part under it and medical insurances dont provide much assistance for dental treatments like root canal.