Having started saving at the beginning of my career, it helps me to think about my spending/saving as part of the future value of my money with compounding
Every 10 years the retirement value of my contribution is roughly half, meaning at a certain point, the compounding is doing the work and I can use my previous savings contribution to enjoy life more.
Ex, $1,000 saved at 25 is roughly $15,000 at 65 (7% assumed rate for these numbers)
$1,000 saved at 35 is roughly $7,500 at 65
$1,000 saved at 45 is roughly $3,800 at 65
$1,000 saved at 55 is roughly $1,900 at 65
I'm sitting in that point at 40 where if I continue to contribute at the same rates, I should hit my Retirement numbers at ~51. (51 isn't exactly a goal, but will be a moving target depending on real returns/spending/inflations/etc going forward)
I could also cut my contributions down to just 401k company match only at 5% (Not going to leave that on the table as long as I work for a company) and only push my retirement out to ~54 with the same assumptions
We've lived plenty in the interim, but we started saving early so things just now mainly need to time to compound.
We basically now just have more wiggle room in our spending, especially to be more guilt free in spending, and have some fun with our kids. I can't quit yet, but this comfort opens up avenues that we can pivot on if we want to, take some risks if we want.