How bad are we talking here? Are we talking literal six year-old's handwriting or it's just in general sloppy. I mean, in general as long as it's reasonably legible (you can easily make it out without any major difficulties) and you can write at a decent speed, you should be fine. If it's actually like a six year-old's handwriting, then you'll need help.
(I didn't know using electronic methods actually stunted your handwriting. My handwriting's always been a little messy, but I never would've attributed that to typing; I just never cared about having good handwriting.)