It's your BTC you HODL as long as you want. I'm hodling since 2013 and never cashed out a satoshi. How long will I hodl? I don't know, will probably cash out 10-15% at a given time to enjoy the fruits of my labor, but I will never cash out all my BTC. I plan to leave some to my kids also.
Nice feat, but I guess you forgot to add your HODLing has nothing to do with your regular income. So if you're into HODLing as a means for raising income, your approach will definitely shift. All said, it's your sweat and sweet, do with it as it seems best for you, because it's meant to be used someday. As for me, I sell when I see a need.