I took resil: wisdom on my barb

[KorvinStarmast]

Seriously considering switching back.

/End rant

Low sample size.
Your decision to go Res Wis was an Excellent one.
Why do I say that?
My Rune Knight began with 11 Wis. +0. I took the feat. +1, and then prof bonus +2 initially.
I am now level 15 and I am +6.
I have frequently made Wis saves that I'd have otherwise missed. And we have to make a lot of them.
(And ask one of your caster friends to maybe use Intellect Fortress: it gives you advantage. It is a team game).

I occasionally have to rely on the Indomitable Fighter feature to re roll a save, and I was tempted to later take the Lucky feat. Have not yet.

Hang in there. It will pay off.

And you are still going to miss a few wisdom saves. That's the nature of how saving throws versus spells work. My warlock rolled a 1 on a Charisma save the other day: he's proficient and has a +4 mod. Yes, it sucked, but that's how the game works.