George V
Sibelius comes linked to a music scanning application. Depending how neat your writing has been, you may be able to scan some of your past work in, but you will need the professional version.
I have successfully scanned in handwritten scores a number of times, you miss a few things, but it's easier than starting from scratch.
_________________________
Graham, Korg Pa1000, Korg G1 Air, Countryman E6, Roland BA330, 2 x Roland CM-30, , Mackie SRM150