Re: first pistol
Remington first decide what you want the gun for.
If it's just for range and maybe Home Defense look at 9mm.
If you want a pocket pistol get something like a Beretta Tomcat .32 acp
If you want to carry inside the waistband maybe a Bersa Thunder .380 or a 9mm There are many nice 9mm's.
REMINGTON Do Forget the 25 acp they are a worthless gun, I don't mean they won't hurt/kill someone but you are better off with a .22LR or .32 or .380