Walking...
if with my wife at a park, beach, paved path or nature trail, the conversation occupies us, taking in the waves on a beach, the flora and fauna, birds, butterflies etc all divert my mind from any issues.
Alone in the same locals, minus the conversation much the same, but I do find I get my stride into a pace, rhythm, sometimes I hear and concentrate on my breathing and zone into this like a trance with no thoughts on anything that is bothering me, still aware of the Beauty of my surroundings, the fresh air feeding me energy. If I am on a hiking trail, the exercise of where to place your foot when stepping over stones, rocks, tree routes, fallen branches, logs & twigs, up and down uneven terrain has your mind totally involved in navigating the countryside. Sometimes I get into this zone even walking these areas with my wife. I go back home with a fresh new outlook, completely refreshed, feeling good from the exercise & knowing my body thanks me.
Hope something in there may work for you.
Cheers
Jamie