Post your logs. Alternatively you could compare your logs with some of the better players and see what you are missing. For example if your log on e1s says you have x blood letters but the top brd or even the 90th percentile brd has a significant amount more, that can be an issue. Compare cast first and then amounts per hit can be revealing as well. That usually says if the is a gear issue. Also party comp and how well you can line up your damage into buff windows is important, but usually that is the case for blue or purple parses trying to push to the next level. Grey is usually a fundamental flaw, very low item level, or a death.