Guild Wars 2

I don’t remember what the other items were but the item I got back was a Shamans hat of something

But it doesn’t matter anymore because I found the good sword on the trading post and got it

So just today I was in Lions Arch at the Mystic Forge and I got myself a really good greatsword, and since I’m a noob I wanted to see if I combined it with my main greatsword and a few other things if it would make an even better greatsword, but instead I lost both the good and my main greatsword for some hat that I cant wear.
So I was wondering if its possible to either reset your game to another save or maybe even be able to reset combos in the Forge

Thanks
Hagar