I've done it unsuccessfully (left social media for all the reasons you can imagine).
If you can get away with having accounts as "Podunk Meetup" or something like that, or "Raquel at Podunk Meetup", that is what I would suggest. Facebook has the problem of having to use a real name, i'm not sure if you can set up your name and then minimize it to be Raquel L. or something similar. We always set up free email accounts (podunkmeetup@gmail, forwarded to my own email), and I don't ever, ever give out my phone to anyone. If you feel you need a phone, i'd consider getting a pay as you go phone chip for your cell phone-- here most phones have two chip slots, so you can put it in alongside your own. If you don't have two chips, maybe consider a cheapo burner phone bought online, the bummer is that you have to carry around two phones.
If you do carry a smartphone with data and use google, you can set up a free google voice number and calls get forwarded to your own phone. I'm not sure if real names are associated with it but if it became a problem you could always deactivate the number or change the settings and then no calls will reach you.
https://www.wikihow.com/Get-a-Google-Voice-Phone-Number