Unable to pull back foreskin. To come.

Is it normal if my foreskin doesn't pull back to reveal glans. Also I never cleaned my penis as foreskin doesn't pull back whether it's erect or not (as no one told me about this earlier) (I remember once foreskin did pull back when I tried to and that was in childhood like when I was not even 13-14 years and that was the first or last time it pull back) I don't have any symptoms also like painful urination, blood, swelling etc. (No symptoms) Even I have masturbated 2 times since 24 August 2021 it finished early like 3-4 mins but everything else was fine (I didn't knew earlier how to masturbate, before that I think used to have nightfalls like sometimes I use to ejaculate while sleeping it was happening since 2017) Sometimes my left testicle use to pain and for current records it happened in dec- Jan months in 2019 and 2020 . 2021 winters are yet to come.