try changing your Preparation rune. Backup plan can turn fights around if it triggers. If you don't like playing with odds, I think Invigoration (10 extra discipline for 5 seconds after using it) its the best for you then, but remember to use that extra hatred right after using preparation. I dropped battle scars after I started using gloom, the life steal usually heals me pretty quickly. As you can see, I'm a shadow power lover lol.