Well, I made a mess of my first one...[:'(]

That was a long time ago and I've learned a lot through "the school of hard knocks". Here's a suggestion though. I recently bought a couple of these DVDs for a friend who has just started hunting and one for my 16 year old son. They are only $12 and are great instruction on field dressing and butchering deer, from the Virginia Department of Game and Inland Fisheries: https://www3.dgif.virginia.gov/estore/proddetail.asp?prod=VW250