Wizard is the most discriminated against class on p99. Their damage cant compare to melee because of how many cheap weapons are on the market.
If you want to play a wizard, here are two pieces of advice:
1. Roll an alt of a class people want for groups, like cleric/war/monk/rogue/ench/shaman/bard so that when you cant find a group on the wiz, you have a backup.
2. Drop the twink items people gave you and join the guild <auld lang syne>. This guild does not use any twink items so, relatively speaking, you will be much stronger compared to your level 20 melee peers than you would be if they had an 80pp CoM weapon. If ALS is not for you, join any other leveling guild. People in your guild (whichever you join) are also much less likely to discriminate against you than random alts who are grinding their 4th char.