Timestamps
0:36 1. Get some kind of CC
2:05 2. Have AoE damage ability
2:47 3. Have multiple ways to heal yourself
3:58 4. Move, A LOT
4:50 5. Kill most dangerous mobs first
6:04 6. Pull mobs
6:43 7. Kite mobs
7:12 8. Research the mobs
8:00 9. Get key loot
8:57 10. Optimize your gearset
9:43 11. Have all layers of defense covered
10:20 12. Craft several displacement clickies
10:56 13. Augments – use them
11:19 14. Start on overlevel/easier quests
12:28 15. Optimize hotbars and hotkeys
13:19 16. Get every potion boost you can
13:47 17. Have all key buffs covered
14:13 18. Have a few emergency spell point potions
14:52 19. Get every little boost you can
15:27 20. Use a hireling for healing, if you need it