, Martin said he's been in tears "15 or 16 times" since the coronavirus lockdown began in the UK.
A huge number of people have sought his financial expertise through social media or MoneySavingExpert over the past two weeks.
As a result, he's been clocking up 14-hour work days to help Brits who face poverty.
He told The Observer: "When someone’s desperate, and it’s someone for whom I don’t have an answer, that’s when I get really upset.
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One plea came from a single mum whose employer wanted her to continue doing her non-essential job.
It means she'd have to decide between not being able to afford to feed her children or taking them to work with her.
To fill the gaps in the system, Martin has been battling ministers to make amendments and clarifications about support packages on offer.
Right now, he's prioritising the bigger needs in terms of getting information to help people.
The money guru said: "Many people are facing a destruction of income that is catastrophic for their financial and mental health."
Although he's typically fighting for consumers, Martin said he feels sympathetic for businesses who've been hit hard by the virus too.
To help them, he's urging shoppers who can afford it to accept vouchers instead of refunds for unusable tickets from airlines and theatres.
A few weeks ago, Martin set up his own fund for charities helping coronavirus-hit people and he wants rich people to donate.
The money guru said examples of worthy projects could include foodbanks, charities engaged in community aid, and those offering financial advice help.
Plus, he's urged Brits who aren’t struggling financially to donate money to help people during the coronavirus crisis.
Earlier this week, Martin also explained how to claim back tax if you’re working from home.
If you're struggling to pay your bills, rent or mortgage, here's how to get help.
Plus, we explain how to apply for a credit card or loan payment holiday and get a 0 per cent overdraft of £500.
Martin Lewis explains how to donate cash to help people who are starving due to coronavirus cash crisis