Wrist exercises

Hello ! How fast should i proceed with the wrist exercises ?
 Should i feel the burning sensation in my wrists when i execute the set or this is a sign that i work too hard ? In the past it felt ok to perform each step once and the proceed into the next one,but after one month a light tenonditis appeared so i think that i need to change my approach.
 

Hi Athanasios, generally speaking tendonitis are a cumulative work and not something that appears from one day to the following one. if you have experimented this situation probably you overdid the exercise or there was too much intensity. 

where is it located the tendonitis?

It's at the red area of the following image ! I didn't feel pressure through the wrist exercises.Elevated thoracic bridge is the only exercise in which i felt my wrists get stressed out a lot.Even the starting position of the wrists is a challenge for me !
 What do you think ? Right now i apply a lot of ice + i massage my forearm a lot which helped me immensely...