Pool party helppp mee.. i need to look good?

okayy so i have a pool party tomorroww and well i have razor burn COVERING my legs everywheree so i need to get rid of that reallyy quickly.. i also need a good type of bathing suit to where thats flattering on me.. im not fat but i dont have rock hard abs so im not comfy with showing them... so help me to look good. and is there some cute wayy i could keep jean shorts on?? HELP me give as many details as possible as to what i should do with everything including hair for tomorrow