Resolved questions
o, wa, no and the like

When speaking in Japanese you often have to use thes o, wa, no, to and some others. Usually I can get it right because I know what sounds right just because I have listened to a lot of Japanese stuff. But I don't know what they actually mean in translation, I can sometimes imply what they are as words like "are" "or" "is" etc

Any tips for knowing when to properly use each one?
(Rather then me guessing based on what sounds most correct haha)