Welcome, Trevor. It will be interesting for you, to make the transition between short stories and a novel. They are two different forms of storytelling. Settle in, settle back, and prepare to tell a longer story in a slower fashion. Good luck, and even more important ...have fun!
Welcome Trevor, do you have any samples of your wares? PM me. I've got headspace for a short story presently.
Yes...going back over your scribbles will be a challenge...but i think you'll find ( hopefully) that you actually like your own work. Going back to a book i completed more than 5 years ago...i was excited to find i enjoyed it. Now for the edits!