Does anyone know of a legit way to make a 2nd income online that actually works?

Ive been trying to make money online for about 2 years now and nothing seems to work it seems like everyones a goddamn scammer!!This is getting frustrating ive learned alot about marketing seo,blogs,ppc etc..on the upside,but still looking for a way to make a little extra money and not be scammed anything work for anyone?