Thanks for the opinions guys.
If cooking is so hard i'll try to level weaponsmithing and armorsmithing(or wathever they're called), thanks again !
The reason people suggested Cooking is because it doesn't share many ingredients with the other professions, making it easier to level both of them at the same time without too much gathering of the same item types (metals, crafting trophies etc.) needed for the other professions. Cooking isn't hard, but it will be a lot more expensive if you don't have access to some of the Karma vendors on higher level areas.
So basically in this game weaponsmith and armorsmith makes gear that's actually worth wearing?
Yes, you can create armor and weapons with maximum stats through crafting, although you might want to look at transmuting the weapons and armor into better looking ones (keeping the stats) if you happen to find better looking ones on your way to max lvl (with transmutation stones found from exploring, zone completion and from the gemstore).