Welcome to HCM.
You didn't mention your age.
You have to be happy that your glans
is very sensitive. This sensitivity will slowly goes down by years of your sexual activity.
will make you glans less sensitive sooner.
Wearing condoms will reduce the sensitivity.
gels also will be useful.
It is normal in young age. Don't worry. If you worry unnecessarily the your erection will be impaired due to distractions.
Don,t always try to test the sensitivity . You will be alright.