I too started like you. Initially I didn't believe that it will true earn money, I was doing Signature campaign and earning airdrop etc. I didn't stop there I also doing trading with the currency earned in through this process no major investments and miracle happened. Not only that it helped me to gain knowledge how the traditional and crypto institutions work. I will evolve this process to earn more and try to a new technology to compete with blockchain.
Yeah, most of the bitcoin's users have started career with Signature campaigns including me. Actually in bitcointalk a huge topic for discussion and in this wise, we get knowledge about investment and trading then we start a step and can't stop our-self, because in all ways we have a choice to earn bitcoin and these really profitable for us.