Healing
From UO: Origins - Wiki
Gaining Healing Skill
As a new player, you can train Healing easily by exiting west out of Britain and going to the cow pen with approximately ~3000 bandages.
Attack around 8 cows and heal yourself on a loop. This will also work for weapon skill and tactics, except for archery because it will kill the cows too quickly.
Thank you XxX Barbie XxX for the guide!
Also see Parrying