How to level up smithing fast [duplicate]
Solution 1:
Potions won't fail regardless of alchemy level if you use the correct ingredients. According to the wiki, there are 4 ingredients you can use for fortify smithing:
Blisterwort
Glowing Mushrooms
Sabre Cat Tooth
Spriggan Sap
A common method of leveling smiting is to buy as much iron as possible, make iron daggers, and enchant them. Sell the enchanted daggers for a profit, travel or wait to refresh shop inventory, and repeat.