Sorry, you really can’t do nails if you can’t do a fill on a set that is only three weeks old. A fresh set after three weeks? Girl no. Learn how to do nails properly. Like wtf. 🤣🤣 Especially since you doing acrylics. Acrylics are not supposed to be a fresh set every time you get them done. All that tells me is that your work is not very good at all and your nails probably start to lift after a few weeks. You are doing way too much by having a policy of three weeks. Bad business move.