said 6 months ago:
To add to @rich-brooks plan. When it comes to using the channels your audience uses (i.e. Facebook, LinkedIn, YouTube, etc.) I highly recommend starting out with ONE! Dig into it, understand it, use it and get a good feel for it then move onto the next one and so on.
If you set up and work the first one well, these members will flow over to your next one, and eventually move between platforms as you establish your presence.
Trying to move back and forth between platforms you don’t understand actually can set you back. You don’t have to learn everything about it but don’t just sign up and hope for the best.