I need help! My answer for the trial balance never equals in the fitness city practice set!

Can't help you unless I can see your numbers. A trail balance must always have equal debit and credit balances so you have either missed an account or you have only posted one half of an entry or your math is faulty. Examine the difference and see if it matches the amount of any of the entries, does the difference divide by 9, it might be a transposition