If you find that physically typing up your work is difficult there are voice recognition packages which can help you do the job.
AbilityNet also provide information about using Voice Recognition. You can find their Factsheet from the Link below.
In addition to the Factsheets listed on the AbilityNet tab on this page, AbilityNet also provide information and guidance on adapting your own PC to meet your accessibility needs. The service is called My Computer, My way and is linked below.