AdG
We can't give financial advice on the forum.
Try putting your information into one of the online benefit calculators
www.gov.uk/benefits-calculators Your ESA will be treated as a couples claim so you will receive more money, but your partners income will then be deducted, You may lose all of the Income Related ESA element that you currently receive so that is the Disability Income Guarantee and Money for being severely disabled.
The ESA(CB) will not be effected and will remain in payment.
Gordon