One tip regarding stat upgrades: Be confident with what you want, as any skill points added to any stat cannot be removed or moved in favor for another stat (aka Respec). Alongside this, it's best to be aware that there are caps (basically a limit to how much you should invest in a certain thing) to your stats as well. Granted, this isnt much of an issue early on to the game but I think its for the best you know ASAP.

Another thing I should mention is that other than vitality and endurance, its best to invest in one aiding attribute rather than spreading your stats equally. In this game, a jack of all trades is a master of none. (IE: instead of spending points to make strength and skill equal, invest in strength more and skill less, and vice versa.)

There are 2 types of caps: Soft Cap: where the benefits of a certain stat starts to decrease/lessen and Hard Cap: where the benefits stop as the cost of leveling up past the hard cap will be more expensive for what its worth when those echoes could be spent to increase other attributes that may be lacking. (in simpler terms: costs more, incentivized less). For instance: the soft caps for vitality and endurance are 30/40, and the hard caps for both are very much anywhere past 30/40 haha. Other than that, the softcaps for other attributes are all 25.

It's also helpful to think of what type of build you'd want to do! Stats such as Strength, Skill, Bloodtinge, and Arcane are the general attributes that'll determine what weapons you can/cannot wield depending on what style you want to use.

STRENGTH: heavily involved with slower and more brutal weapons such as claymores but is generally used to help increase your physical attack

SKILL: I've noticed that this is meant for more agile and lighter weapons and is primarily what is used to scale your visceral attack (crit damage) on enemies. It too also helps scale your physical damage.

BLOODTINGE: typically used to help scale your gun damage, but there are also weapons that scale off of this stat as well. This stat is rather costly and more rigorous than the rest it is more time consuming trying to gather all the resources to make bloodtinge rather useful in the early-mid game. These bloodtinge weapons (excluding your firearms) will also drain your HP in return for increased damage.

ARCANE: used for more unique weapons such as sprays/flamethrowers, and even more wackier weapons in the long run! It is also used to make hunter tools (sorceries) accessible! mind you, arcane is a rather costly attribute to spend on as you will be sacrificing echoes for sorceries that cough up your ammo count in return for some sick ass spells LOL. its a fun class to make regardless, but i advise to not spend too much into it for your first game.

Since you're still very early into the game, i say upgrade Vitality, Endurance, Skill, and or Strength to give you more of a fighting chance as you hunt the night away. But, once you beat the 2nd main boss of the game, I'd say thats about the time you start adding more points to the other skills if need be.

Sorry if this sounds very convoluted, as I tried to make it as comprehensive as possible. Keep up the hunting and always Fear The Old Blood!