Hi How Are You Doctor, I Am 40 Years Old..I

Hi how are you doctor, I am 40 years old..I was practising some Penis stretching excercises about 4 days ago I got off the internet called jelqing .I think i did to much bit rough with it. I think i did some nerve damage on the tip of my penis. I can still get errections but lost some sensation... and its a bit saw I will rest my penis for few days ..do u have any advise will I get the sensation back like before... hope i am ok..