I teach in Central Texas; we do our certifying dives in Lake Travis where the vis isn't ever going to be confused with blue-water diving.
I'll get students sometimes who are scared of diving in low-viz conditions. So, I'll have them list what's in the water that could hurt them. (The answer, critter-wise, is "nothing.") So, I'll remind them that if we get separated, they know what to do. If they get tangled, they know what to do. I reinforce that I'm going to go pretty slowly and that I'll have a light that I'm shining back behind me that'll help them follow me.
The first dive for them is usually the scariest. After that, they know what to expect. And the more you dive in it, the more comfortable you get. It's like golfers playing every weekend on the local muni course. If that's the place near you where you can golf, and you love to golf, that's where you go. If low-viz is what you dive every weekend, it doesn't become low-viz diving, it's just diving.
The good thing about diving in low-viz conditions is that, for navigation, when you swim away from the platform with a compass, you can't just turn around, look up, and swim back. You really have to navigate back. You have to swim pretty accurate patterns for search and recovery. So there are some advantages, too.
How do you deal with it? Dive it more often.