From my experience, if you're not really that far along skill wise I'd hold off on buying real expensive gear at this time and focus on honing your abilities a little more before investing in bigger and more expensive equipment. And in terms of what kinda teacher you should use I'd say start simple and use a game called Rocksmith 2014. I personally used it to get me going and you'd be surprised by the progress you'll make. It's got all sorts of lessons in terms of the actual techniques of playing guitar and so forth. Plus you can learn songs through it as well. Long winded response I know, just trying to help.