Whilst this question was asked 8 years ago and I'm sure the questioner has hopefully moved on to a better financial position, I would still like to share my answer to anyone else who is stuck in a similar situation. Hopefully it will be of help.

Anyhow first off all, I am sorry that your startup failed. Startup companies can be very risky and you worked your heart and soul into getting something off the ground only to not work out. At least you have learned from it and got yourself back on track.

If you want to immediately start making $1000 a month, there are three options that come to mind. The first is to get a job which pays you $1000 a month. There are many jobs out there that would pay this amount, from shelf stacking to office assistant. 

Now I am not in anyway suggesting you stick with such a job for the rest of your days. But at least it help you reach your financial goal.

The second alternative is to start a business where you are flipping physical products on platforms like eBay, Amazon, Craigslist. Essentially Buy Low and Sell High. I am not kidding when I say that many people in your situation have been in the exact same position and gone on to start flipping product businesses which make them far more than $1000 a month.

The key here is to make sure that you start cheap (or free) purchasing stock. And when you sell some stock, you reinvest into more stock to sell on.

The third option is to start some service based business. Ideally one you can promote to those in your local community though with sites like Upwork and Fiverr, you can offer your services on a global basis.

Again with this option, you need to have some skill which you can provide as a service. Be it copywriting, freelance writing, programming, etc. Yet even if you have no such skills, no need to fret. Gardening, window cleaning or domestic cleaning are services that you can also offer to set up as a service to your local community. 

If you wish for any advice on how to get into one of these businesses as well as improve your overall situation, feel free to book a consultation.