Want to know how many skills/weapons/spells Gilain, Siros, or Nysan have GM'ed? Not as many as some think. (I dont count languages/trades.) Does it really show when they are fighting other players? Not really. Siros holds his own, few enjoy a fight with Nysan, and old Gilain gives anyone a run for their money. Fighting NPCs, well... can't win them all, even long-time lvl 50s die now and then.
Far as leveling is concerned, I resort to my mining outlook. Mining takes FOREVER!!!!, even moreso when you are not some fancy priest.
Now, if you are sitting in a cave doing nothing but typing stand,mine,mine,mine,mine,mine,mine,mine,mine,sit/rest, it will be the longest, most boring experience in your life.
On the other hand, if someone is with you, if you are sending tells, or doing anything along with the mining, it doesn't feel as long.
Training/using any skill/weapon/language is the same way. If it is just you and a room full of practice dummies, yeah it'll be boring. So, break up the tedium with someone or something else. Stop watching the water boil and it'll boil faster!