Questions about nofap and my gf

hello,

I’m recently new to nofap as an effort to stay true to my girlfriend as I’m unknowingly doing PMO behind her back I realize this is wrong and want to make a change, but I also have answers of what to do and what passes.

1.i know sexual interactions are allowed during nofap but does this include actions such as sexting or masturbating to nudes?

2. I’ve already mentioned this idea of not masturbating to my girlfriend, but how do I sexually satisfy her. (We’re almost 18 and basically rabbits)

3. What is hardcore nofap?

4. Is there anyway to reboot feeling in sensation as I suffer in physical acts with my girlfriend and often can’t 'finish'