Hi Don,
Glad to hear you're making progress!
It sounds like you're talking about the lowest 3 frets, which are also the biggest.
There is an exercise for increasing finger independence and stretching that someone showed me back when.
Start with your little finger on the [4th string-12th fret](D), your 3rd finger on the [3rd string-11th fret](F#) , second finger on the [2nd string-10th fret](A), and 1st finger on the [1st string-9th fret](C#)
While you can strum these 4 strings, I'd suggest picking each one individually. It's easier to hear when you're not playing a note clearly.
After you get comfortable with this form, move your 1st finger down to the 8th fret while keeping the other fingers on the frets assigned above. Play this for the same amount of time you did the first chord.
Now move the 2nd finger to the 9th fret while keeping the other fingers in position. You should now have the little finger on the [4th string-12th fret](D), your 3rd finger on the [3rd string-11th fret](F#), second finger on the [2nd string-9th fret](Ab), and 1st finger on the [1st string-8th fret](C).
Next move the 3rd finger down to the 10th fret for the same length of time as the other two positions.
You'll have: the little finger on the [4th string-12th fret](D), your 3rd finger on the [3rd string-10th fret](F), second finger on the [2nd string-9th fret](Ab), and 1st finger on the [1st string-8th fret](C).
Lastly, move the little finger down to the 11th fret also for the same length of time as the other 3 positions. You'll have:
the little finger on the [4th string-11th fret](Db), your 3rd finger on the [3rd string-10th fret](F), second finger on the [2nd string-9th fret](Ab), and 1st finger on the [1st string-8th fret](C).
Now you can either start all over again and move each finger down one fret successively, or you can start with the little finger and move it back up to the 12th fret, then move the 3rd finger back up to the 11th fret, then the 2nd finger to the 10th fret, then the little finger to the 9th fret, and you'll be back where you started from.
Here's a video of a fellow playing this but starting 3 frets higher than I wrote above. He only shows the exercise descending, but it's great to try and do it ascending as well. I would suggest trying to shift down one fret to start, then ascending back to where you started as I outlined above. After a while you can go down a couple of frets, then 3 etc. etc.
Good luck and I hope it helps! BTW there are other finger stretching exercises on Youtube that I noticed when I searched for someone to illustrate the exercise.