/* Each next level has 10 times more Exp to upgrade than previous level */
Lvl 1 : (1/1)
Lvl 2 : (10/10)
Lvl 3 : (100/100)
Lvl 4 : (1,000/1,000)
Lvl 5 : (10,000/10,000)
Lvl 6 : (100,000/100,000)
lvl 7 : (1,000,000/1,000,000)
lvl 8 : (10,000,000/10,000,000)
lvl 9 : (100,000,000/100,000,000)
lvl 10 : (1,000,000,000/1,000,000,000)[MAX SKILL PROFICIENCY]