Yeah I have that thanks but won't let me upgrade any more??? Does my 1 hand skill have to be higher??
The higher your blacksmithing, the higher you can upgraded it.
But in order to upgraded it twice as much as your skill (Legendary at 100), you need the perk.
So whatever metal that weapon of yours is made of. you must have the corresponding perk in order to make it very good.
Dont worry too much about it, Im sure your self made daedric or ebony weapon will be better.
You can make ittems better then legendary by using potions and enchantments.
They will still be called legendary though.
Otherwise, ALL armor and weapon you improve once you have 100 smithing, and got the corresponding perk, WILL be legendary.