I do, a saas running for nearly 20 years.

How long is not as important as does anybody want what you are selling.

My advice is aim at something boring that people rely on everyday. Be the person who sells razor blades, so to speak.

I am 54 and my response to your 40s insight is, "Amen".

My meditation is religious in nature.

I work my way through the Lord’s Prayer every morning. I pause after each line and then pray with words.

I started this pattern a number of years ago as I could not concentrate during silence and I wrestled with intrusive thoughts.

This has been life changing. I believe I have become more disciplined in other areas of life and health as a result.