Hi MAHAD
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.
We cannot answer your question as we do not know your circumstances such as do you claim carers allowance.
UC is different from ESA, there is no 16 hr rule with UC, depending on your circumstances UC has a work allowance and a Earnings Taper, we would advise you to seek advice from your local Welfare Rights Organisation:
advicelocal.uk. they will be able to take all your circumstances into consideration when giving you advice.
Gary