This game is pretty good, but it is more RNG heavy than Darkest Dungeon lol
Try to avoid situations where you need good luck (or even decent luck) to win.
I went into woods got ambushed by 5 vampires, game over not much can be done except avoiding trees.
More rng heaavy than Darkest Dungeon - it really isn't. And it gets less rng heavy as you progress and your bros cannot be two-hits killed anymore. However, it is true that the visual range in the forest is very small. Which means that yes, forests are more dangerous. Have you ever heard that story about little red riding hood and the wolf? In the forest? That's it. However as other have pointed, normally you do not encounter undead in a forest. Brigands, webknechts, that sort of stuff, Not recommended for party in the very beginning (except spiders) but ok past that. Usually.
One of the skill of playing this game is knowing when to fight and when to run. Preferably running should take place before decision to fight, not middle of fight. At the beginning low level humans and undead + some easy beasts (be careful with Nachos, they can be easy or deadly) are all you can handle. Also the game scales (to a point!) encounters to your numbers so if you loose a few brothers you can still recover, no need to end the run. Tough if that happens early and you are almost wiped out, feel free to do so.
Edit: I suggest a small mod that pauses the game in some additional situations, tough some find it "cheating" or something. I think the game should come with the options. It is a turn based games not a RT one after all.