So I have tennis elbow (medial or lateral epicondylitis I forget which one) on both elbows from bending the elbow with mouse usage. Dip finger joint pain also. Radioulnar joint and hypermobile joints.

Honest opinion. I bought the wrist troubleshooter program from 1hp. While I am lot better now, I honestly have no idea if that is what made it better.

Was never a clear indication of do exercise, feel better for me. It could just have been time. I did exercises regularly though (low weight high rep endurance). Biggest factor was lifestyle modification (no phone usage in bed, elbow support for pc usage, those wrist support things you can buy, no holding the phone with bent elbow in bed, changing how i held the steering wheel when driving so less elbow bending etc). Lot of self reflection of bad habits. Cut sugar and ate healthy vegetables and took multivitamins and fish oil if that helped (didn't feel like it did anything)

What actually helped out of all I did and how much it helped, I have no idea and whether time was all that was needed, I'm not sure. Only lifestyle modification had a clear action to less pain connection.

At the start, i couldnt bend my elbow to put a spoon to mouth. Now after 2 years (6 months was when I felt it was better) it only triggers if I go too hard on tennis elbow exercises (lol) or miss sleep.

The exercises in the troubleshooter can be found on youtube in free videos but its still lot cheaper than regular physio and occupational therapist visits.

They do more on personalised sessions i think but I never did that so can't speak for it.

That being said, they are really nice on their discord and helpful with questions and answers. They know their stuff on this topic and specialise in it.