If you aren't going to be living in Texas then it would be tough to do a house hack there.

He tells you to pay him $5,000 (or much more) to learn all the "secrets" that made him wealth, but then he doesn't tell you that his "secret" was to increase earnings, reduce expenses, save up and invest.

I need to find a place to live and I don't know what to do. 

As noted above, up to 50% of gross rental income normally gets eaten up by expenses (taxes, management fees, utilities, landscaping, repairs, capex, etc).

I live in New Jersey area.

I've done 7 myself and lived for free or better in every single one.

Cash on cash is only what you are receiving divided by your expenses.

It depends how long you plan on living.

I have multiple listings across different parts of Florida and I don't even live in FL.

While you may be willing to live without heat/ac or hot water for a week.