Teenagers have these super odd rules about how often to post on social media. Do not follow the rules your kids use. Post the hell out of your art. Do not, however, post more than one photo in an hour (unless you are using stories) because then you will annoy people. Just talking about your art or saying daily you are "going to the studio" without showing photos of your art in process (or complete) sounds really artsy but that won't sell a thing. Text only status updates are not enough anymore. Post multiple times in the day and be sure there is a link to your shop in an easy to find spot. Facebook and instagram do not show posts in real time anymore so if someone missed your morning post, you can catch their eye in the afternoon- and this is another reason tagging is essential. Buyers often search by tags/keywords.