Found out last week that my job at MegaSoftwareCorp has been eliminated. I have till Mid June to find another job, or take the package. SERIOUSLY thinking of joining the class of 2019! I'm almost 64 and have the FI portion down (I think...), it's the RE that's scaring me. DW is 62 and terrified -- of me being home all the time ;-). She may keep working...
What specifically is scary for each of you? It sounds like you have the FI part ducks lined up, so I guess it is a "what will I do with myself" thing.
I FIREd in January of this year, at 59.5. I was a software engineer too. I had/have a plan for the financial side of things, but had no plan at all for what I would do with myself. I was thinking that I might keep coding for fun, on open source stuff or whatever. The first thing I did when I retired was set up a development Mac workstation with dual monitors, IDEs, etc, like I had at work.
Well, it turns out that I have no interest (so far) in anything to do with software development. Chores/projects around the house, hobbies, and a little volunteering keep my busy. I picked up playing the cello again, after a 41 year break (but that's another story), and am having a great time.
So, jump in my friend, the water is real nice! I occasionally meet up with work colleagues and listen to them complain about work stuff and commuting etc, and I just sit there and smile. They are starting to learn that we can talk about non-work things too at lunch.