Starting an AirBnb business is only medium difficulty with one MAJOR exception. You need a physical location to rent out; typically a house. Those can cost a lot of money if you need to buy it.
Do you have a house now that you could start renting out?
If no, are there houses that you could buy and rent out? The financial aspects of that business can be very good, but again, you need something to rent. If you do not have any real assets you can probably still get it done, but it will require figuring out how to finance your first property.
Do you have money for a down payment?
PS: these discussions can go on for a long time, we will help you however we can.