I didn't use companions
No potions
No enchants
No smith perks
No pot perks
No enchant perks
Game still too easy. Only slightly difficult part was 1-12 when weapon skill still too low, but once you get perks it's all bleh. Basicly you shouldn't even touch perks to adjust difficulty. Imagine you're playing wow in 25men raid and you kill last boss in 2min. Should guilds limit their gameplay by playing naked for challenge? No it's game company who should balance difficulty for you and not yourself by limiting everything.
3 skills are totally useless
Pickpocket:
Lockpicing
Speach
Basicly you shouldn't even bother loot corpses or steal. I was sitting on my first char 100 000 gold and nothing to buy since I didn't bother with smithing/pots as they are pure easymode cheat.
Enemies gets bugged with kiting
Enemies health should go 100% if they go out of combat but instead they stay on % you shot them last time.
I didn't had internet working 2 days because svitched operator so I had to play this game but I uninstalled it with all frustration.