Ok, sounds like you would be able to regain range of motion with diligent work.
Since it is not a new situation it can take some time to start to see results.
Other tissues may have made compensations to allow you to complete tasks.
Are you seeing improvements with what you are doing?
Are you working up and down stream of the wrist and elbow?
Completing 10-15:00 of mobility work at day is a key starting place.
You’ll need to address sliding surfaces, along with mobility.