Thank you.
Volunteering with young people &/or health related &/or homelessness will be very rewarding - good luck to you.
You're a motorcyclist - how about Blood Bikes? Volunteers who transport blood etc. between hospitals.
http://www.bloodbikes.org.uk/
If you like driving and dogs (two good choices
) then Guide Dogs need drivers to transport dogs/equipment etc. so maybe that's something to look into in a couple of years.
How did you ever find time for work???????
All the very best.
Andy.