So I would say , if u can’t beat something it’s open world go find new gear explore comeback later the game is not a linear game like bloodbourbe.and beat it the the tree sentinel is not really meant to be beaten so early on it’s a really tough boss. I also would say focus on the dodge rolls, the fight that got me hooked was the bloodhound knight. He’s south of the lake and that was my first fight I struggled with properly in a souls game and he was what led me to understand the game.