Need help finding if i am single vision or bi-focal?

it seems that the word 'bi' in your question has directed you to the LGBT section by mistake. you will have to ask this in the 'Optical' section instead. however i have had many experience with opticians and the best thing you can do is get your glasses custom for you, if you go to an opticians they will be able to give you the correct lenses. it costs money, but you can damage your eyesight by wearing incorrect glasses and self diagnosis is not a good thing.