there is more to just watching people, you should also try be creative in your own ways, i 'hate' (with not the full meaness of the word) that people just think they can be really good at something if they watch someone good play. i mean, sure, it works, but now all you are is a copier, and you won't have any knowledge on how to improve yourself.
watching good people play can teach you a couple of things, but you shouldn't focus yourself on just that, learn to adapt your own playstyle.
yes i am being blunt.