I want to get better with the revolver. Any advice?
Lessee...Here are some, in no particular order...
Learn to shoot it double action
Get an action job if the action's gritty
Don't get in the bad habit of staging the trigger
Include ball & dummy drill to diagnose a flinch
Grip it high
Use an appropriate bullseye-type target (rather than a silhouette) when shooting for groups
Find a good revolver shooter in your area who's willing to spend some time with you at the range.
Start shooting matches with it