Start a new character. You cannot level up. No assigning health, mana, or stamina.
That also mean no perks.
You can do some smithing and enchanting, but not very much.
You live of the land mostly as far as upgrading armor, weapons, etc., is concerned. You do need to make some money, for buying new stuff, but I'm keeping the money right around 16K. No looting dungeons of every item you can find - I put this limit on myself because I'm a dungeon looter and don't want to do this on this character.
Other limitations you can impose on yourself as you want.
But with no leveling up and not using perks, you already have limited yourself quite a bit.
Good luck.




