Why sell though? One can always ignore being acquired if that's aligned with their mission.
Money is so plentiful these days, from personal experience you can just work for a FAANG/eqv. for max 4 years and amass at least 500k to a million bucks easily.
That's plenty money to bootstrap your company, and in some cases more than enough to cut out needing vulture- sorry I mean venture- capital for a good while or ever. Also, you can leverage free resources (like YC's videos, since we're on this site) and find VC related podcasts to understand how they work, so you can learn strategies on how to grow and completely avoid them.
Not to mention, 4 years will give you access to competent like-minded people (networking), a deeper understanding of how these companies operate and what to avoid/adopt, and if you're in a technical position you will most likely level up like crazy to the point you feel confident on learning any new tech and doing everything yourself. Don't know design? Attend some design workshops. Don't understand product marketing? Attend the workshop with the dude who wrote a book on how to do exactly that, and ask him questions. What does operational strategy mean? Attend that workshop.
These companies also have conferences and events where they bring leaders to speak and share their expertise- go to these and learn as much as you can.
The only resource that truly matters is time, so while you're alive, do execute. Just my 2 cents.