OK so recently I have been diagnosed with High Blood Pressure and in my quest to bring it down I am looking for a relaxing hobby (along with all of the other lifestyle changes...

)
When the Mrs asked me what I enjoyed and was good at, I remembered that back in the day when i was in the Air Cadets, I was rather good at shooting, along with model making but I think I am a bit old for airfix kits now and they would probably frustrate me!
Since that was a rather long time ago, does anyone here shoot targets for a hobby?
If so, do you find it relaxing? If so, how would you recommend getting in to it and what kit would you recommmend getting?
My budget would be £800 tops for a full outfit.
Thanks in advance