I took resil: wisdom on my barb

[Silly Name]

Tbh, I feel the Rogue levels may be more impactful in making you feel "worse" than Resilient: Wis does.

The extra damage from sneak attack isn't bad, by all means, and we all know that Barbarian levels past 6 usually aren't exciting, but I find Fighter levels tend to be a better fit.

Rogue forces you into using finesse weapons, so that ~7 damage you get from Sneak Attack is really ~4.5 damage (1d8 base damage vs 2d6). Cunning Action and Uncanny Dodge are good and all, but they don't make you a better attacker.

Meanwhile, 4 levels of Fighter would've net you Fighting Style (better damage curve with GWF), Second Wind (B.A. that gives you a little survivability boost), Action Surge (one of the best "force multipliers" for weapon users), and picking Battle Master as your subclass gives you some extra options on the battlefield. And, yes, Fighter 5 is a dead level for you, but going Barb 8/Fighter 4 isn't too bad, and nets you an ASI as your "capstone" if you end at level 12.