I just don't know what to do?

first things first. suicide is a bad idea. for both you and your family. you parents would be heartbroken an your brothers an sister would never be the same. the best thing u could do is to just help your parents if ever they need to. your parents most likely don't want you to worry about them. in these tough times everyone is being effected in some way. your family should be ok but u have to fight to get through the hard spots