Don't solo, plus the threat level will raise to the highest level in your game. So it will be harder to kill if a level 115 joins you.

Try to have a capped level player to help you.

There is no use adding more drops to the loot table, join open runs if you find it difficult.

Xp orbs and xp kits drop easily when you are under level 115 and are wearing 100% luck gear.