Once growing business failing because of covid19

So I’ve had a growing social media/advertising and design business for 2 years.. things were going well, I had several proposals out with interests, a stream of pretty regular clients etc..even 2 employees that I’ve had working with me.. with the virus hitting it’s like they’ve all cancelled. Each week I’m sending out like 5-10 thousand, yes thousand emails, even offering custom branded COVID19 infographics to medical offices, trying to adapt to the times etc.. for a ridiculously cheap rate.. (after offering above market value, then market value which weren’t successful) with literally zero response. Yes so, thousand of emails out.. zero response.. as a result, I’m in a position where I am worried about keeping a roof over my children’s head.. I’m probably going to start looking for a corporate gig and pause on my 2 year long endeavor of growing this business... I’m at such a loss, and feel like a huge failure.. I can’t believe it’s come to this. I’m so so so depressed over it. Anyone else ? I feel bad for all the servers and stuff too, but at least they can file for u employment .. being self employed that stuff doesn’t exist for me and my family