I have a char that GM'd years ago. When gains went slow, I would take 2 pieces of small ore and smelt it. I could almost swear that I used copper to GM that guy.
I have two other Chars that are like 92 and 97. I have plenty of +5 gloves, so I'm not far from having at least minimum GM on both, with gloves.
So, if mining gets you bored, try stacking 2 small ores in the corner of your backpack. Use UOAssist and make a macro to USE a 2 piece pile and make it a USE TYPE and then make the TARGET, your forge.
Don't make the 2 piece ores pop into a larger pile. Drop them at the top corner and they'll slide down and rest in the pack. I hope that was clear enough?
Edit: UO Assist, won't play that macro using the ore as an Item Type. It used to, but I just tried it and I get an error message.