I thought this was a bear post XD You're not at 75% avoidance... you're at 75% passive CTC. You're at just under 25% avoidance... small but key difference XD
1. Meta is Eternal (stam/+1% block value)
2. Gem for tanking bonuses with hybrids for non-yellow
3. yeah, SB is kept up as much as possible
4. Gear has a lot of expertise on it, which is better than hit, but reforging into mastery isn't as good as passive. But that will come.
That'll help with the range
Run the TB dailies as fast as your green little feet will take you and get the Mirror of Broken Images for your 2nd trinket.
What fights were you having trouble with, what was going on? Your base looks appropiate for gearing on your own, there doesn't seem to be any glaring issues outside of gemming hybrids for non-yellows is better.