The Lantern you equpped on the sub hand come with a heavy skill, check the skill list and hold the appropriate button to activate it, it set fire on the ground for roughly 1 second and cost 4 stamina,it's very effective againt the sewer rats.
Watch your stamina, use "rest" skill whenever you are not in combat, always keep your stamina up as much as possible, pay ATTENTION to your STAMINA, if it falls below 30 run tf away and don't look back, don't bother coming back with a plan for revenge, just RUN. Don't have food ? eat anything and everything, pick up the white rat and the worms running around, eat them, you gotta survive, nothing matters more than surviving. Just eat...
Unless you turn on Hell mode, you won't have to deal with
gastroenteritis so just eat them all. Eat anything you find, semen, poop, piss, dreg, rat, human meat, goblin meat... Just eat them all.
JUST EAT THEM ALL
That's the basic way of surviving in this game. The more advanced method involving you buying a sickle at the market and move all the ways to the rain forest in the east of the city and settle there for as long as you want untill you feel you have the guts to take on the world and leave the forest behind. That forest have it all, abundant foods, stamina herbs and delicious wild boars. LEAVE THE BOARS ALONE, STAY THE FUCK AWAY FROM THEM, THEY WILL KILL Y-