I'm off work at the moment self-isolating and I'm not entitled to any SSP. I've been advised to claim Employment and Support Allowance, but isn't this for people who have had to give up work through ill health?
‘New-Style’ Employment and Support Allowance is not just for those finishing work through ill-heath – if you meet the qualifying conditions for it then even if you still have an employment contract you can make a claim for it.
Depending on your situation you may be able to make a claim for Universal Credit and / or Council Tax Support too – contact a Benefits Adviser to find out more..