I have a friend that has had great success with Meetups. One is a walk/hike weekly. Another is 'wine and painting' night monthly. And her favourite is a Meetup that does something new each week. One day it was ziplining. Another it was luge carting.

She seems definitely to be over the boredom and emotionally more healthy too. The best part of this activity is that she has met some new aquaintances.

I stick closer to home myself as I don't drive or have the funds for the activities (kind of stupid to walk 5 km to join others in another 5 km walk). But I still try to remain active. I do my own lengthy walks, and I read (perhaps to an excess). While I can't afford to participate in all the festivals in town I walk down and enjoy the free entertainment.

Read
walk
find free things to do.
create/make art if you can.
Support group (there is a social side to mine)