I don't think it matters. In elementary school we always use to decide who's handwriting was girly and who's wasn't, and if we had graphed gender against handwriting (neatness), there wouldn't have been much of a correlation. But, if you want to work on it, I believe girly handwriting is stereotypically curvier with loops and such. Can you write well in cursive. Maybe switch to that. But again, I don't think it matters.