Being fit and healthy has to be number one priority. Without this, you will not accomplish very much.
There is a line between using this time as an excuse: "I cannot start that project because I have no time, what with all the exercise and warm ups and warm downs and juicing and protein shakes and nutribullets and meal preparation"
...versus using it to propel you forwards, Jocko Willink style.
Discipline equals freedom. And discipline in one area of your life will transfer to the rest of it. Starting with discipline enforces it for the rest of the day.
January is a great time to start afresh. But only because that time is now!
Start anytime. Do not wait for an entire year if you have already given up on your New Year's resolutions. Just get back on track as soon as possible - now, this afternoon, tomorrow - but do not write off an entire year.
Putting yourself first could be seen as arrogant and dismissive of others, but actually, the opposite can be true.
By thinking of others and then trying to fit that into a prioritisation list with yourself at the top, what you need to do becomes clear.
If I want to look after my wife and son and spend the time I want with them AND I am also putting myself first (I need to exercise, meditate and complete the rest of my morning routine to be the best I can be and have the energy to deal with the day) then I need to do my stuff before anyone else gets up.
There are a lot of problems that can be solved by just getting up earlier than everyone else.