New to DS3 but I have played ER, got a few questions.

I am like 1-2 hours into this game now, first I want to know is how do skills work in this game? In ER you can change a weapons skill is it possible in this game too?

The weapon in ER I always stuck to is the greatsword with lions claw ash of war. I chose that weapon because I'm a fan of Berserk. What's the closest sword that is Guts like and if skills can be changed what skill should I equip on it? I preferred using lions claw because of the iframes and it just hits like a truck.

How does the weapon upgrading system work in this game? Is it same as ER?

Is there some sort of a helper in this game too like summons in ER or is it just you're all alone.

How does enemy awareness work in this game? It seems like you can't croutch in this game but you can slow walk, so does slow walk make the enemy not get alerted if you are behind them?

The camera movement in this game is a lil weird I must say, in ER I could fight without needing to locking in on an enemy but in this game without lock-in it feels so weird is there something I can do to improve this or just deal with how it is?

Are there talisman slots in this game too? If so what are the ideal talismans for a strength build.

Any cool armors that look like Guts armor?

And also what are some termology changes in this game? Like so far I only remember that bonfire = site of grace. Some sort of bones that lvl up your healing pot heal = golden seed. Etc.

Anything else I should know?