I'm no expert, but have been told that it takes 4 weeks for your concrete to do 85% of it's curing. The other 15% take place over the next 50 years. So, the 1st 4 weeks are critical to take good care of it.
This may be a little extreme, but I kept the concrete slab that I poured for my shop wet for 4 weeks after pouring. It never dried out in that time. I used a sprinkler on a timer. I poured it on a 90 degree day, so there was a lot of opportunity for heat stress. That was 27 years ago and I have yet to see a crack on that slab. Other concrete work that was done at my place by "experts", who talked me out of doing this, had cracks within 2 years.
So... for what it's worth, from a weekend warrior and 1 time house builder....
Greg