To add some specificity, you probably shouldn't be playing 2-3* maps at this point. They seem to be right above your normal level of comfort in playing.
I'd stick to high 1*'s to practice your rhythm sense and reading the approach circles to improve your accuracy, and use low 2* maps to put that practice into action.
Also, I suppose you can play with no-fail on, but imo it's not good to use it as you're learning.