I am a renter who was financially effected by a tornado in October 2019. Will this give me any kind of extra earnings on my return or not?

I am a renter

Who pays rent? If so, how are you expecting a tornado to give you "extra earnings"? In order to have any earnings (much less extra earnings) you have to go out and actually "do something" to earn it. You really need to clarify things here.

It depends.  If the tornado resulted in a "federally declared disaster" there is a deduction for loss of property, but only if you itemize deductions on your tax return.  Otherwise, "casualty losses not resulting from a "federally declared disaster" are no longer deductible, starting in 2018.  If your business was impacted during a federally declared disaster, there are provisions, in certain specific situations, to deduct loss of income.

See IRS Topic 515 for more details on deducting a casualty loss.