I would rather be 5-10ft past the hole than 5-10 short. That way I know I've given my shot a chance. Committing to the shot has helped with my confidence and less frustration..

Steeper attack angle, more outside to inside motion. I assume you use a Pro-V. You may also want to try the X if that isn't your current ball. Work with a pro, and practice, practice, practice.
That should cover it. But there are limits to how well you can put spin on a ball with a slower swing.

Assuming you've got clean grooves and a ProV, I'd say the best way to produce spin is to think of a match striking motion. Ball first contact is key, and as others have said, a steep angle of attack and an outside to in path help.
Crisp and aggressive contact usually produce plenty of spin for me.

In my mind when I wanna pull the string on the ball is try to make contact with the ground that directly is in contact with the backside of the ball.

I agree with the match stike feel but remember when you stike a match, you have to apply enough pressure to ignite the match....same goes here, you must take enough of a divot to pull the ball....but not too much as to where you’d break the match.

I have a similar issue when I’m 50-100 yds out I get plenty of spin. When I’m around the green I concentrate in chipping it close rather than trying to get spin. My local pro gave me lesson on getting spin around the green by using the bounce of my 58 deg but I found it a bit hit & miss as you have to get it right without thinning it. So my advice would be stop thinking about spin and concentrate in just chipping it close.

Agree with many comments here. The two-hop, stop low spinner from short distance is a tough shot to consistently pull off. Watch Steve Stricker and how well he plays the dead-handed pitch and run without much spin. More margin for error and more consistent. When he wants some spin he just opens the face a little which creates some cut-spin. Mostly a shoulders and arms swing.

Yeah, It's the bump and run for me especially down here with the against the grain Bermuda grass shots around the greens.

I would think most of the pros on tour have the two-hop, stop low spinner from short distance. If they don't, I doubt they will be cashing any many big paycheck . You are right Dale, It is a difficult shot to pull off but that is why they are pros.
Zach Johnson is another player who has a great short game. (If I recall he did not go for any of the par 5's in two on his way to his Masters win...relied on his short game). Joey, get a good teaching professional to look at your swing just off the green and then go practice, practice, practice! Good luck!