You did not state your age or your station in life. If money is not an issue, then the availability of ammo (and not the price) is what is important.
If that is your situation, and you like the .45, then I second the suggestion to buy a .45 and a .22 conversion kit. Perfect your technique using lots of cheap ammo, and then move up using the same pistol. Everything will feel familiar but the recoil, and honestly, using correct stance and grip will resolve any further issues. First handgun I ever shot (at age eight) was my dad's WWII 1911. I'm not going to say I was a master, nor did I get many shots with it, but it was enough to start a lifelong fascination.