How realistic is aiming for a genesis wep?

Basically the title. I am fairly new to the game(returning after years of adulting etc) and I want to know what to realistically expect from cw . How much would I have to sweat to get a gen weapon with the pass ofcourse grind wise luck wise etc . I am maining Ren btw . Also I’ll like to remind you I am new so yes my question may be silly etc please spare me the sarcastic or negative responses I just want to learn and get better thank you.