Don't be afraid to start. Just read carefully the recommendations given in the area on how to make the offer. You simply have a skill and you want to put it at the service of others and in the V4V application you receive SAT for your help.
In my case as a Family Physician, I cover most areas of care, from children to older adults, including pregnant women. That's how it's been for 25 years. In your particular case, you can use your knowledge both to publish information on SN, as well as to provide online care and, if applicable, provide personal care in a specific location.
But go for it. Begin. Every long journey begins with a first step.