by the way, you can't be good at playing guitar just by listening to Yngwie - lame talented but boring guitarist who only based on shredding, listen to more music like blues - bb king, eric clapton, jazz - allan holdsworth or john mcLaughlin, and more classic rock like led zep, ac/dc, sabbath, queen, cream ...
fast sweeping ain't too hard, but playing fast doesn't mean anything - you need more than that to be considered as a good guitarist ...