Is it bad to sext and phonesex ( no pics,videos ) with my gf cause I get boner while doing this.

I'm in a journey to heal myself, I have been addicted to PMO from past 10 years, and whenever I start PMOing my morning wood comes back but when I start my streak It goes away, so I'm doing a hardmode nofap to heal myself.

is it really possible to get back MW after the age of 25.

and also I'm a virgin, I think due to frequent fapping my penis size is shrinking, and I think I wont be able to satisfy my girlfriend.
we are in a long distance relationship and talking over call and text very romantacally, no pics or videos btw. Is this bad for my reboot cause I get boner while talking to her sexually.
so If the situation arises I want to really satisfy my girl in bed, How can I do that?
Do you know any ways so that I wont ejaculate early.