HELP!!!!!! First Time Getting Married

I really need help, me and my fiance have little over 3 months till our wedding, i just lost my job and im broke. My fiances mother is paying for most the stuff but we still need to pay for a cater, DJ, and just mild decorations. My family is not being very supportive,we are having it at fort desoto park in florida, we have our bridal party picked out, date. If you can help i would really appricate it. Is there any cheap caters, and DJ? please help. Thanks