I’m sorry to hear but in all honesty this is the world of digital marketing. Biggest tip to learn from here is that to be successful you have to diversify your strategy and you have to be on top of any changes that take place. Digital marketing landscape is always changing and if you don’t keep up with it you won’t succeed.
It seems like you’re going into panic mode with your ads here. I’m going off the assumption that this hasn’t been in place for too long so correct me if i’m wrong here. Your ads need to run for longer than a week or two to really count out. Optimize for conversions is your best bet and update your website. Test new platforms and avenues of revenue such as social even, FB is not the be all and end all. Hard to say much more on this without much more info or seeing anything.