Thanks everyone, some really good advice here, I will go for an electric guitar as rock is my favourite and the bonus is that you guys are saying it's easier :)

I'm happy to spend around £200 (I'm from England) I wouldn't want to spend more because the sad reality is that I have no idea if I'll stick with it or not, I'm hoping I do.

Does anyone suggest any websites that will have a reliable electric guitar and amp for around my price range?

I'm 6'3 if that makes any difference haha

Really appreciate the quick replies and indeph helpful advice guys :)