This is hard because if your not having alot of sex hopefully you can find other things to make you happy and fulfilled.and if you are having alot of sex it could be crappy sex.(yes for women this does happen from time to time)I would say finding someone to love longterm that loves you back,is more fulfilling than sex.(except of course if your just having a quick shag with a phenominal guy.)
sorry edited for typos:)