Sometimes life throws things at us and lead us to a place where we find ourselves with time to be used and filled differently as to that to which we have known in the past!
Illness, Retirement, rehabilitation, for example? The list is huge!
Finding new interests and hobbies maybe a good start and may also be very helpful for stress and anxiety, ptsd related issue relief/distraction for example.
Take a look at the drop box menu as there are a number of ideas there that may be helpful to you also?, and that we can find and trial for ourselves throughout time!
Find and see what works for you :)