honey, you need a support system and people who would be happy to help! (or at least willing to!)
With daycare and non-profit and other things!
They are called 'volunteers'!

And there is info on how to get them and work with them online...
Also look up Barbara Sher and her books - I really LOVED Wishcraft! (and it's for free online, though if you can get it in RL, maybe in a 2nd hand shop or on eBay, it's probably better than printing it!)
/which is what I ended up doing lol/
She tells you how to start anything - for free at first! Just 'dip your toe' into things at first! (It doesn't have to be 'all or nothing'!!) Go as slow or as quick as you feel comfortable going! (If it scares you, can you do something on a smaller scale, but still in the same direction? eg go to a class/workshop about how to run non-profits or get volunteers/funding or meet up or read about someone who works in a non-profit or started one etc)
There are books, articles, websites and courses on how to run non-profits, see if there's anything locally? (eg check libraries or non-profits that help other nonprofits etc) Have you helped out or volunteered in existing non-profits? You can learn A LOT this way!
Maybe an existing non-profit would be happy to do (some of) the work too? Or it could be shared across several non-profits, some existing and some new ones?
Some bigger non-profits can be VERY HAPPY to get new ideas for good projects!!
(If you wish to get paid for this though, some caution may be needed - to see what YOU would like to do and get paid for, and what you can 'give' to others for free - some welcome new ideas and would be happy of volunteers and might not have funds to pay new people... )
Some non-profits hire new people too... It can be easier than doing something 'new'... Again, depends how compatible your ideas are with existing organisations and their way of working...
People with jobs in the non-profit sector could maybe tell us more too?
PS Twiggle I'd LOVE to hear more about your job/s and how you got'em! (Maybe as PM if you don't feel comfortable talking about it online?

)