I suggest continuing to work, but perhaps being pickier about where you work. Perhaps there's a dream job you've always wanted to do that up until now wasn't feasible because it doesn't pay enough, like fireman, park ranger, teacher, musician, etc? The key here is to have an obligation (people depend on you) and social interaction.
Also, see if maybe you can develop some hobbies. It can be as simple as hiking or collecting stamps. Preferably one that has a social aspect so you have human interaction.
You're going to need, at the bare minimum, a passion project to keep you engaged.
Sometimes, retiring early is the worst thing to happen to a person. Make sure you know well in advance how you're going to fill your days. Because having a bunch of empty days in your immediate future can be very detrimental to your mental health.
Good luck!