also in 2018 the reason i didnt file was because i was on workmens comp didnt think i had to do taxes. what do i do?

how do i so that? i need taxes to be free i have no money. is there a charge

how do i file my taxes from 2018. for some reason it did go through. ?what do i need to do?also, also my dependents on my del taco tax for says i have 6 depende...