do what i did . lvl ur pet leveler up to level 29. so that way u can wear the +10 gear u get for free. and then go to the prison in merac. only lvl ur pet on spike canine . they will never attack ur pet . so u dont have to worry bout that part. and with the +10 gear u wont have to worry about def. every time ur pet levels up put the stat point into armor. hope this helps a little

or just choose other mob to pet lvling
try some higehr lvl once that are not aggresive like berserkers or gnolls maybe u can stay alife there and do not kill it
else just go for 31 to get ur stats reseted when u choose a job, after abandone the job and u will have lowest possible dmg