Thumb pulling for chin growth

[shortslayer1]

I have been experimenting for a 2 or 3 days with thumbpulling under my chin to fix my slight recession, and I do it by placing my thumbs under my chin, and push up and forward, I am hoping that this works and I will let you know about progress in the future. Any ideas on how I can maximize this process?

 

[Sceptical]

Any ideas on how I can maximize this process?