@Slick
I echo what has already been said but will add or reiterate:
Do not wait too long until you retire. The older you get the more you realise that time really does not waiteth for any man or woman. It's easy to say and agree with but it really will come home to you maybe a decade or so down the track. At age 60 I did not realise the steps I would really have to take to stop my body declining like so many of my peer group (cycling certainly isn't enough) as the years have rolled by (I'm 67 now). Swat up on this on YT. Similarly, how my mental attitude to life would changed so profoundly. Some get up and go has gone! I enjoy, really enjoy, just chilling more than I ever did, have distanced myself from the political and social zeigeist (deliberately), and have developed a relatively fatalistic attitude towards life. Probably due to being closer to so many unavoidable truths. Act now in the light of future changes that you will/may expetience.
Priorities change as you get older and enter retirement. For the pair of us here it is health for self and partner, plus fitness of course, at the top of the list. Without either your retirement will be compromised. Health can take unexpected turns for the worse - if you have any Big Plans get them done asap.
Relationships. Some people can happily fly solo their whole life but we are, as a species, geared up for life as part of a pair. If you are part of a couple then plan together and
do retirement together. You do not have to be joined at the hip but I see plenty of couples drift apart as health, libido and family commitments drive a wedge between them. Treat retirement as a fun time for two! And, as some have already sadly found out; partners are no more immortal than you.
Money, money, money... Yes, it's important to have enough to cover outgoings and life's eventualities in retirement. My advice: don't do quick & dirty calculations, do a proper projection for the years ahead. Build in life changing events eg kid support, how would your partner cope without your income etc.
Savings. It's nice to have plenty but you have to learn how to spend it. We came from poor families and have done very well financially, but we are still learning how to spend. Our savings still grow year by year and we never will have to worry about them running out. But, and it is a big but, it is easy to spend like a fool, much harder to spend wisely and add value to your remaining life. As long-term savers & investors the 'cling on to what you have' mindset can be hard to shake!
If you have kids & grandkids and are into kids (we are not) don't let your family steal your retirement. There is a difference between helping out with grandchildren and simply being a dumping ground and general family workhorse. Your own children are obviously younger than you! They are living their life, live yours! Controversial maybe, but we have several friends whose lives have been overwhelmed with GC duties but do not speak out for fear of causing a rift.
Practicalities. Sort your Will, LPA's, Living Will & funeral wishes as a matter of priority. Leave it too late and you may well regret it.
Work. Let it go. Even though you love it! I had a great career, loved what I did and retired early. Despite this, I wish I had never had to work at all. In retirement ie at 'normal-ish' retirement age, time is so precious, you don't have much left after all. Do not work unless you really need the finances. Seriously! Don't do it!
Best of luck with your decision making!