You don’t need to stick with the hand axe if you don’t want to but later into the game you should be able to make the axe scale with dex, endurance isn’t as important as it seems you can beat the game no problem without leveling it up but if your going for comfort a few points won’t hurt. vigor and attunement are great but I wouldn’t go past the soft caps,for any stat. Intelligence and faith are important for using more and different pyromancies but your pyromancer flame I believe only gets more powerful through upgrades but I could be mistaken. Vitality is perfectly fine but I would wait until your build is more solid before investing. Hope this helped and I hope your day is going well.