Alternative form of the fucking you get isn't worth the fucking you get

(vulgar) The sexual satisfactions that one receives from a spouse or romantic partner are not sufficient to compensate for the significant periods of bad faith and unpleasant treatment which such relationships routinely involve.

Alternative form of better the devil you know than the devil you don't know

There is no guarantee that you will get the result you want.

Alternative form of damned if one does and damned if one doesn't

Spending time with undesirable people will cause one to take on their undesirable traits.

Alternative form of you don't look at the mantelpiece when you're poking the fire

(US) Sometimes you win and sometimes you are defeated; everybody has successes and failures.

You shall carry the negative consequences of your not having prepared properly.

Alternative form of you pays your money and you takes your chances