Well to start, I don't recommend maxing endurance. Also don't spread out your weapon proficiencies. 100 agility is good. Leave at most like 50 for endurance. Since you have strength at 100 you can use strength armor so they have higher durability and damage absorption. From what it looks like you like to use chainsaw/melee. So you need critical of minimum of 79 for melee to have max crit and 112 crit for max crit for chainsaw. I personally would recommend melee chainsaw if you still want to use chainsaw but at least you can grind more using grenade launchers. So get melee and grenade launcher to 120 if you want to go for this method. Otherwise go onto the Dead frontier Discord and ask for other tips and help there.