usually it's recommended to play some games against 100-200pts higher than yourself. that way, they'll punish you for typical mistakes of your level, but you still win once in a while. players of your level don't catch the errors that keep you on your level. on the other hand, playing people too much stronger than you can be discouraging as you'll just get beaten time after time. getting beaten once in a while is just good for you. builds up hunger and stomps that false pride. 🙂 -also play some games against people lower than you, to learn how to win 'won games.'
but as flexmore said, the most important thing is to have fun. otherwise you won't have the motivation to study or play properly.