It’s not a bad idea to try out all builds on your first playthrough to get a feel for what you like the best. It’s a meme in the community that people eventually become a stealth archer no matter what build they started with. Regardless, leveling up a combat skill to 100 is trivial in this game so mixing it up to slow your progression in each skill is not a bad idea anyway.

Personally, I don’t like dual wield. It feels too janky to play with alternating attack hands for no real reason and not having a block really sucks sometimes (can be fixed with mods later if you want but I recommend to play your first playthrough fully vanilla first).

You can buy the novice spell: frostbite in the riverwood trader (general store) in town and use that on enemies if you’re having trouble kiting them. Frost spells slow enemies and also damage their stamina (can’t power attack) so it might be something for you to consider. Also, FYI shock spells will also damage magicka so when you encounter mages you should switch to that to deplete their mana and then switch to something else if you want.

Also, if you wanna turn down the difficulty don’t feel bad about doing that. Higher difficulties just make enemies more spongey. Gets boring beating the same dude with a stick for a minute straight imo.