do i put all my points into vitality?

yes

then i can't wear CoA :(

look for a high stat anni/torch and gear
Example:
Lets say you got a perf stat anni/torch
20 Torch
20 Anni
40 Rings (each ring +20 Str)
Enigma? Depends on your lvl normally around 60ish?
Treks 10ish right?
hard to get but +20 str amulet with other stuff you need

together coa requirement is fulfilled good luck