try to get more dex or restat so ur dex is higher den ur int... stick in prison and follow what ppl above me have said XD.... safety wall storm gust ( prison gives you money ^^) the drops of elus and steels are a good + for money... since you dont have much dex gears going to niff will just kill you , its best to just stick to prison, i get about 30% per half an hour as a high wizard there when i was ur lvl so u should lvl even faster. my gears arnt that good either...
try to get apple of archer as monimonih has mentioned , its cheaper den that moonlight hat
a dex survivors rod....
go prison run around get a mob quagmire it, sw further away and walk into the sw den cast sg.. by the time the mobs come to you your storm gust should be almost out or even out already....
Ur int just has to be enough to be able to kill the mobs in 1 stormgust.... and the monsters in prison all takes the full dmg storm gust

... except that fly thingy </3
Take note ur magic dmg modifier is in the division of 5's... so 70,75,80,85 etc will have addtional alot more dmg. For example 75int will have much more dmg den 74 int even though its only 1 int apart.... just try to get it a division of 5...
good luck ^^ Prison is great cause you can get buffs from nice ppl too XD....