I see thanks for the help, and is the game supposed to be somewhat hard because after almost every fight i have to return to the capital city to heal myself etc and i dont really enjoy this back and forward just so iam ready for a fight
The secret to surviving every battle is basically having Trey and using his Aura skill. He has 2 auras that makes him basically the most important party member to always have. He has a health regen aura that heals a character every time they take an action, and an aura that regens mana on every action. I prefer the health regen aura cause you just activate it at the start of every battle and your characters just regenerate health through the battles. The mana one is useful if you want to manually heal characters with Trey / Mira. Also unlike most games thankfully you can use healing skills and items outside of combat.
To change which aura he has active go to the church in Aldyln.
Trey is borderline useless in battles since he has such low agility stats which means he barely ever gets any actions, and does very little actual damage, even when using a silver spear against undead, but his passive aura skills are worth their weight in gold.
Generally my line up is Ryen, Trey, Sandra. The last character is who is need as the situation calls for, though generally Tsbuki. Ryen and Sandra are the main DPS dealer in my play through cause they both dual wield weapons so they have the highest damage for regular attacks, which means they never run out of mana and can fight basically infinitely with Trey's regen aura ability. Also Sandra is great because she has high agility, and her stealing ability gives you huge sums of cash depending on the enemy. I generally use Tsbuki as my fourth party member because she has high agility so she gets to take a lot of actions compared to the rest of the characters even though she does relatively little damage, her skills don't take mana, and she has attack all enemy skill. Usually Ryen and Sandra do the bulk initial damage, and use Tsbuki and Trey to do the coup de grace on weaken enemies with like less than 30% health.
Also make sure you buy a Talisman of Preservation for each character from the merchant in Crysthaven before he disappears in the drinking quest for Ellie, cause being able to save TP for the next battle will help you defeat enemies quickly without taking more damage than what you can regen from Trey healing aura. Also helps you conserve mana.
Overall unless you get into a boss battle, you generally have a ton of healing / health sustain in most scenarios cause Trey's health regen aura, Trey also has a healing skill, and Ryen eventually also gets a supporter skill that heals 60% of your entire active party's health, and you can always swap Mira in to heal characters in battles and out of battles. And a lot of characters have self healing skills like Vampire having life drain, etc...
Also a tip for leveling up quick is getting some silver weapons and just go to Begus and train on undead. You can 1 shot most of them with Ryen and Sandra, of finish them off with a second hit using Tsbuki and Trey before they even damage you.
There are certain enemies you should just avoid fighting in general, like wasps or rats cause they poison you, or ones that have a magical attack all skill. Just run from the battle if you can since most of the time they're not worth it from a gold / exp gain for the amount health they shave off.