Reverse kegel can combat PE

Hi all , I am m35 , married. I love playing with myself more than sex with my wife. But recently, I discussed this issue with her and we are changing our style of sexual life. But unfortunately, when we PIV start, I only last 30-35 sec. Only. We are advised to do reverse kegel. But I can’t do it. Any personal experience or tips to end this premature ejaculation.
N.B. I can last about one hour if I do solo masturbation.

Source: reddit.com/r/Erotica/comments/uxdpej/reverse_kegel_can_combat_pe