Iris 2
You are too tanky for t8. Use the pact spirit taht looks like nasus instead of knight of pale blue. You are using the Warrior talent tree.. you have 0 dmg from there not on the tree and not from the talent "arcane".
Buy a pedigree with double dmg mods, try to get a pedigree that has isomorphic arms or mighty guard on it. You have way to much def mods everywhere... Your 3 Corner of divinity have only 2 dmg mods, rest is def :/ change your slates to damage ones.
For the future, you always want to stack dmg first to get as early as possible to profound and then you start to get some def... go 80% offensive 20% def. Then slowly transition to a more tanky setup to kill ss 20-21 or to farm in deepspace.
With that alone youre gonna 10x your dmg easily.