I have been both….
We retired first when we sold our business (micro biologists diagnostic veterinary lab). Decided I was too young (45) to stop working completely, so we made a pact that if someone offered us some money to do something we’d take it so we could extend the pension pot as far as possible.
Mrs VV has always enjoyed gardening so started doing a neighbours garden for 3 hours a week and finished up earlier this year having been recommended to others in the village working 25 hours a week gardening, and still works part time for our old company online.
I started dry stone walling (profile picture is one of mine) as a hobby around 2000ish so that was a natural move to part time self employment which morphed into can you build fences? Lay patios? build decks etc.
I am now on my last major project before retiring for the second time (60).
All this on top of owning, looking after competing and now judging dressage horses.
It took us about 3-6 months to realise that we didn’t have to go to work today unless we wanted to.
Would we do it again? Retire that is yes absolutely.
Did we have a plan? No not really apart from doing something non horsey 1 day a week - still to manage that
Active or sedentary retirement? Definitely advise an active retirement if health good, know of or heard of too many people stopping work and then becoming life extinct without getting time to enjoy retirement.
Many great suggestions in the thread above, now is the time to do those things on your bucket list hopefully as you say in 12 months time you will wonder how you had time to work.
Best wishes