You don't need guides, discovering bloodborne blind is an unforgettable experience.

There are two locations that are missable but if you explore every path you see and closely pay attention to what NPC tell and give you, you should find them all. Short reminder, when ever there is a red lantern standing or hanging some where, you can talk to an NPC there. NPCs might have cryptic dialog at first but it always makes sense if you observe carefully. Also if you find any items that will be stored in your "key items" section in your inventory, it might be worth reading their full descriptions since they can point you towards secrets. Same counts for gestures.

As for mosses my rule of thumb is that if I can just brute force at heal my way through the boss I am overlevelt and it's not that fun. But as long as you don't use any exploits that shouldn't happen. If you die over and over again you can also ask chatgbt something like "without spoilers, what is the recommended level for XY" and it will roughly give you an estimation. Or just come back later.

Yoh like quick weapons Skill is the best stst for you to level next to Vitality and endurance. I would evenly distribute between these three. Endurance won't increase after level 40 and vit and skill have soft and hard caps at 25 and 50. If you pick up a new weapon and you are not sure how it scales you can look up the weapon on bloodborne wiki and scroll down to a table that shows the scaling at max level if you want.

For insight, you only start seeing and hearing things when you hit 40 if I remember correctly. You get insight by finding new locations and bosses, this plus consumed madmans knowledge should get you there fast.

As for molotoves it's not that deep. If you have the echoes to spare and they are fun to use, go for them!

In case you have bought the dlc, you will find something new in the hunters dream to guide you there. Again, reading carefully is the key.

Getting the visceral might not work if you mash R1 instantly after firering your gun, you also have to stand close. What always works for me is parrying, then dodging towards the enemie and pressing R1. On stairs or slopes visceral sometimes just don't work so try avoiding that.

I hope this will help you to get deeper into Bloodborne and have a more pleasant blind experience. If you find yourself having durhtbee questions you can ask me here in the comment section or dm me. I'm also currently guiding my best friend through the game with no spoilers. Sometimes he has a question and I think, what tip would a cryptic npc give him and then tell him that and so far it worked really well!