i had a accident and didn't know my insurance was expired and was hit in the rear my car is total what should i do

As Mr. Gold pointed out, the fact that you did not have coverage does not make your case impossible to pursue. You should retain counsel here in the state of Florida for representation on contingency fee, which means you don't pay anything unless you win the case.

Hello Edward, The fact that your insurance is cancelled is an issue, but it does not make the case impossible. It appears you have a potential case against the driver and owner of the other vehicle and possible UM/UIM if such coverage is available to you from any other source.   A Personal Injury attorney can investigate this matter and determine all possible responsible parties and insurance coverages rather than pursuing on your own. Choose an experienced professional to guide and advise you and evaluate your claim. However, if you are interested in consulting with one of us, you will have to reach out, as attorneys are unable to directly solicit on this forum. There are important deadlines, so do not delay.