I can't play too good but one thing I learned when changing to the C chord is to practice the chord change with a capo on the 2nd fret ..
These frets are slightly closer and the fingers don't have to stretch as far , and when I can move from G to C really easily I remove the capo ...
It worked for me on this transition , maybe it will work for you as well
A capo don't cost a lot
Trev..
Oh welcome