It seems like you need a big cup of L2P.
First off, this hybrid has ZERO action management. Worst action management of any viable spec in the game hands down.
Second... Don't gather up. It can taunt, it can debuff, and it can aoe. This is how it gets its damage.
Third, it isn' t very tanky. CC the healer, everyone target the pt=dead pt.
Look, this game isn't hard. Learn what classes do well at what, what they struggle with on others. What you want to do is with your class, exploit what they don't do well, while maintaining your success. Same thing in real life. L2P dude, just L2P