Lacking Progress

Hi everyone,

Hope you all are having a great weekend. I have been working on a bigger penis since September. My routine is as follows:

8 minute warm up

10 minutes manual stretch

10 minutes Jelq

8 minutes cool down.

I have been doing this 3-5 days per week and have yet to really see any results, wanted to get some input from you guys. Is there something I should change? Or is progress sometimes really this slow. I am currently 6” length and 4.5” girth, would really love to increase those numbers, especially the girth one. Thanks in advance for any help.