Little advice for the sin
Agility is probably easiest stat to obtain for low LVL sins you can upgrade low level hunt items with extra agility you want to try stack as much as u can for use in places that hit with physical attacks and will be your biggest help vs early game subs. Don't forget to use poison cloud to boost your agility whilst tanking subs
The potion delay is 2 seconds but for subs you will need a few pills, they heal for same amount but 1 sec cooldown and much less weight but be careful buying loads as they cost more. A few pills to pot when u are low and poison cloud on cooldown and you'll be fine, agility around 40 in poison cloud should be enough.
Very important to pay attention to what mobs are weak to and attack with and if you want to be able to benefit most from hunting multiple areas you'll need various types of kits.
Hope this helps, see you in game