Hi Julie359
Welcome to the forum.
You might want to have a look at the following FAQ which explains where everything is;
www.benefitsandwork.co.uk/guides-for-claimants/faq/forum I cannot answer your post as I do not have enough information, I would advise you to contact your local Welfare Rights Organisation who will be able to take all your circumstances into consideration;
advicelocal.uk Your mother claiming AA will not affect your ESA and DLA, you will be at sometime in the future asked to apply for PIP.
Is your father in good health? does he receive AA/DLA/PIP? Your parents maybe entitled to Pension Credit, a Welfare Rights Organisation will be able to do a benefits check to maximise income.
Gary