I really have no interest in Smithing with my mage character. However, I still want to get the Stalhrim Crafter trophy.

I was at skill level 15 for Smithing. I have spent the last 3 hours making Iron Daggers and am at skill level 46 for Smithing.

I think I need to get to level 85 Smithing to get the Ebony Smithing perk and be able to craft Stalhrim Armor.

What is the quickest way to get my Smithing skill level to 85? I cannot bare the thought of 3 more hours of making Iron Daggers!

Make jewelry. Smithing gets more experience if you make more valuable items.

This. Also, make dwarven bows as well. Just delve into a dwarven ruin and get as much dwemer scrap metal as you can and smelt it into dwarven ingots.