Retirement was an adjustment unlike anything I'd ever experienced before. DW and I both started working in our early teens and didn't stop until retirement. The first year was like being on vacation since we moved immediately afterwards, the second year was a bit more difficult, adjusting to having lots of free time and nothing scheduled. And I did go through a period of depression - it's hard to let go of an identity one has held for almost 30 years, at least it was for me. But at the same time it was a relief because I could also let go of the responsibilities that went with it.
But then I thought "Why do I need to schedule anything?"
We have all the privileges of adulthood with almost none of the responsibilities. We have good health, a steady income, a paid-for roof over our heads, two vehicles, no debt, funds set aside for any reasonably foreseeable contingencies, a small boat to go fishing with or just a lazy day on the river, and the list goes on. We bought a couple of bicycles for rides (now if I can just talk DW into using them more) and enjoy that.
There can be some boredom when the weather is lousy but family and friends noticed within a year that we were both more relaxed than they'd ever seen us. We're not ones for lots of travel, preferring day trip type outings for the most part, and that works for us.
DW is very close to family and it's important to her to have lots of free time to spend with them. We recently discovered that her father has been living beyond his means and we're working on getting him into an environment that he can afford and where he won't have to have a car since his driving days are clearly numbered, so that's the "project" for now.
Retirement is a phase change, no question. But as one of my older relatives put it "When it's time to retire, you will know". I don't believe you'll need to ask anyone else.
Be grateful that the decision is voluntary and not dictated by health or economic issues at your place of employment as has happened to so many other people.