^ it's too hard to give you "tips" in one-post replies. if someone tells you to use zairs, dairs and uairs, how can you practice them without knowing when they need to be applied?
zairs are used for spacing, dairs are used for punishing and gimping, and uairs are used to keep opponents in the air, or are canceled from a sh with a ff into a dsmash, up b, uptilt, jab, etc.. these moves have plenty of variations depending on how you perform them and under what situation, obviously.
what i'm saying is, the best way to get better is to just try her out for yourself and find what works and what doesn't. and if you're into that typpa thing, watch some videos.. i don't, though, so you can get by without 'em.