SKYRIM HELP!!!

ok so i was playing skyrim and i 加入 the TG in the ratway later on i got chillrend at like level 5 或者 6 ... so now i'm level 81 and that sword is still a very low level weapon and i want it to be tops what shold i do. and no i cant use a 磨, 磨石, 磨刀石