Yes, you enter a whole new dimension of humbling experiences when you start shooting handguns.
There is also a marked difference in handguns between revolvers, and semi-auto pistols when shooting them.
I got reasonably proficient with my DA S&W revolvers, then acquired a semi-auto 45.
Wow! my learning curve started afresh!
But over time, as you practice, practice, practice, you will get a handle on the process.
Just keep on shooting, and enjoying the progress.
Regards, Eagleye.