If you relax more, you stress less. You can teach yourself to take the focus away from the tinnitus and to centre on what you enjoy.
Another great way is to go on regular exercises to helps the body achieve a higher level of wellbeing and in most cases helps people to ignore and better cope with their tinnitus.
Here is a infograph that can help:
(image source: https://bayaudiology.co.nz/tinnitus.)