Over the past few weeks I have had to schedule posts on Facebook due to a severe lack of Wifi at my new home (coming soon hopefully). It has made life so much easier for me, it shows I still have a relevant, up-to-date presence online, even when I can’t get online. Very useful if you have several meetings to attend to or when you are away on holiday and are not sure how good your Wifi will be in at a different location.
You can schedule posts on Facebook for several dates and times and be able to get a report directly from Facebook when the page has been posted. So far this is only possible on a group/business page, not on a personal page but who knows if Facebook will add schedule posts at a later date.
I can schedule posts either on my laptop or iPad and iPhone so have this available at my fingertips anywhere! Maybe have a play with it yourself and instead of making your posts Public, just practice saying for you only until you are comfortable doing it.
Hope this helps!