I started to work on the Internet since November 2010. The problem is, I can't decide which niche to work. I've tried weight loss, weight gain, man boobs, dog training, belly fat, chest muscle building at home, affiliate marketing, make money online, clickbank niches. So I lost a lot of time learning about each niche. I know it's stupid but I can't find the answer.
But one thing I know I love cars. I have no idea whether this niche can make any money online.
Thanks for your help!