JellyJar, I hear you.
There was a time when every shop carried .38 wadcutter ammo. Often it was the best-selling round in the store. Dealers would also sell reloaded .38 WC ammo. I bought a lot of it before I started reloading.
Nowadays you almost have to special-order. Everything in 9mm today. I like my students to start out with wadcutters in their .38 revolvers, but the stuff is so hard to find that we often end up shooting Rem/UMC 130 gr. FMJ instead.
The UMC (yellow box) 130 gr. FMJ ammo is fairly mild and not expensive. It's not good for carry ammo, but you could try some for practice with your lightweight revolver.