As an older person (50) we all have regrets for our time frame in life. I expect mine to change over time.
A speaker at a PK stadium event once told how he had spent years working for a large church as the visitation pastor for hospitals and shut-ins.
He said he'd been at the death beds of hundreds of men. Some had major regrets. Some didn't.
But he said that not once in all those years did he hear a man on his death bed express regrets that he hadn't put more effort into his career.