You need a different type of help if you are still driving it like this and have posted on here instead of taking it to a Kwik Fit or somewhere similar.
It sounds like it could be a number of things from an engine mounting to a problem with the wheel or brake - I think the latter could be the case if a light has come on - do you know which light it is ? In any event it could be extremely dangerous to you and others to carry on driving it.
I hope you get to the bottom of the problem asap.- Good luck