Am I ready to invest on CPA leads?

This is one of the biggest decisions I've ever made, if I really want to do this for my own good. Am I ready now to invest my own money to generate CPA signups? We'll, since I earn money on my search optimising jobs, I can budget it myself and to invest it at my own risk if I can gain profit with the number of signups to the offers I have for free with no CC required. I can make a test spend with $30 on my Alertpay account once my GeniusFunds investment will mature next week. Together with my search optimising job, it's really possible that I could make money with CPA programs, but am I ready to invest there?