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I guess I'm used to Photoshop, other art programs are a bit unwieldy since I have to relearn stuff.

Dont be afraid to use other softwares, if you had achieved to use one, specially photoshop, you will find yourself learning the software faster. Sai is easier to understand, it has that STABILIZER option that makes drawing easier. Watch youtube videos, personally, Im new to digital art. I just bought my wacom a month ago? I think its 1 and a half month ago.