Leave job in covid19-times to start new business

Hello! I started working a side project 5 months ago, it was just for fun, motivated by a serious injury in my ankle. Today I see it could become a good profitable company. In any other circumstances I am pretty sure I would leave my job and give it a try.

However, this Covid19 global crisis might be changing everything, I am worried of leaving a good job, that pays well every month, and later having problems to find a job just as good.

I am 26, no kids.

What would you do?