This is just a personal thing but I don't like how fast I level up. I'm not entirely sure how skills relate to levelling, whether it's all skills or the ones you use the most. But it seems the best way to slow my levelling would be to use as few skills as possible, since skills increase more slowly the higher they are, and your level progression goes up a bit every time you raise a skill. Is that right?
Or is it better to vary your skills?
Thanks.
Use as few skills as possible. Perhaps it's best to play as a warrior at this aspect, as at most you'd only need 2 major skills to succeed:
Whatever type of weapon you like (2 handed, one handed/dual, bows)
Whatever type of armor you like (light, heavy, or none at all if you wish, saves one skill)
A shield, if you chose the single one-handed path
Oh, and use anything but the standing stone that quickens your learning rate. Steed is a good option in this aspect.
However, you will never be able to halt speech from going up.
Being a thief increases the level at amazing rate, especially the Pickpocket skill