First of all i think you gotta pay attention while you're reading something. And... No, because you gotta roll 0 to 90 for make +8 in %90 chance. If u roll 91 to +8 then you will lose your item. Its just example of % system works. Do your research.
Luck system is based on codes and rolling numbers. There is no secret hand that making things easier. I upgraded a lot a items to +8 in this server... WITHOUT burning any item. Just 1 shot.
And i lost a lot too.
So just work harder and dont give up. Thats all.