Wedding Issues... HELP

I don’t think I’m going to be able to afford my wedding 😭 I know taking out a loan is an option, but I don’t want to have to worry about that because I’m also trying to go back to school and eventually will need a new car. My parents said they could help, but my mom WILL NOT STOP BRINGING UP how much money I will cost her and I just can’t take it anymore. I don’t know what to do. Any suggestions? Tips?