Sorry if this has already been posted, couldn't find it... But does anyone know how difficult is it to make each tier?

Is it possible to reach level 5, or 4 at least, playing 40k-50k hands a month on NL50? I'll be able to play more (like 60ish) at the start of the summer.

Playing NL30 ongame atm and thinking of moving my roll because want to play in euro. Know its weighted contributed rake so it'll vary... Playing 30/26 if that helps.