So, I currently have an instagram account in the fitness niche with 26k followers. I've put a kik contact info in my bio for shoutouts or business inquiries and am getting around 1k likes per pictures. However, it seems like people only expect to get free shoutouts and keep sending me their pictures. When I tell them I charge 10$ per shout-out they always instantly back out. This leads me to my question. When would it be appropriate for me to start selling shoutouts? And how can I get people to buy them from me other than just putting my kik info in my bio? Thanks!