I cant Decide what to play on T-T

I have a Dacy lv 66 rb cant even pass 1-1B (hopeless)
lv 60 lime ( cant even kill rigel without dieing 3 times -_-) Edit : History Rigel ( not Legend )
lv 56 Sieg rb ( hard to train )
lv 64 wiz rb ( I duno just got pretty boring )

and for those who noticed i wasnt active for a while on my character in Audacity
its because i keep changing characters
Btw i got kicked from the guild D= ( there is another thread about it )
=P can sum1 invite me back

Edit : um how much is a star skill box? ( random question ) got one today
Help me choose =D
Edit : opened it and i got 1 sp reset ( is that good? )

around 190-200g
or u can open it and if ur lucky u can get a 500gold item. or a 0 gold item

lol i'd open it