1. For the first 30 or so levels u can prolly handle most mobs with average gear that u happen to come across, so long as u got cleric and if u can get em shaman buffs.
After that (and durring even) u need to learn how to kite mobs if ur not goin to be grouping.
Kiting is a simple process of getting the mob to chase you while damaging it. The most common method is done by casting a "snare" spell on the mob while casting Damage over time spells and nuke's.
Also available to you is quad kiting.
First, you must find and snare four mobs that are of the same species. Then circle around the mobs until they are so close together, the graphics are overlapping. Then use one of your Lightning based spells. The Lightning spell will hit all 4 mobs. Then back up until you are out of range of casting the spell, and waits for the mobs to get in range. Repeat until all four mobs die.
Also u can do root-rotting.
Root Rotting is a technique used by classes who get the Root line of spells. Basically, you root the monster, rendering it immobile and then proceed to damage it via spells. This is most effective with damage over time spells (DoTs) rather than direct damage spells, as DD spells tend to break the root and the monster will come running to kill you. If that happens, you cast your root spell again and continue to do damage until the monster is dead. Also remember to snare the mob so if and when root breaks he wont come at u full tilt.
With the TSS ( the serpent's spine) expansion, u can essentially 'twink' yourself with the quests offered.
2. you want to max ur wisdom stat as soon as u can. If u have a choice in ur gear look for stuff with high wisdom, HP, Mana, and AC...
3. I would suggest checking out crescent reach (CR) for good quests, nice rewards, and while ur doin those u'll get good xp. Once u hit level 20 try out the hotzones for item augments and extra xp.
Link to CR quests -
https://everquest.allakhazam.com/db/qsearch.html?zone=431&order=min_level Link to Hotzone info -
https://everquest.allakhazam.com/forum.html?forum=1;mid=117748599721209953;num=15;page=1 4. not much of a tradeskiller myself so cant help much there.
5 - 9. ditto on MychaeleM's post