small problems

i play 0,02/0,05 blinds...not more.... i am trying to do the right play... but any bets i make...even shove in.. they chase the straight and they ussually get it... that is why so frustrating.... i am thinking... maybe if the flop gives flush and/or straight draws and i hit my set... dont get all in... bet the pot... if reraised call and see the turn... if all ok then shove... dont even know how to play these anymore cause it seems every time a flush has a chance... it get me and rocks me...