Yes you could.But it depends upon the methods you follow.If you become a victim of fake marketing gurus and fake youtubers who upload fake earning proofs and earning methods,then surely you would end up in failure I have watched tons of such videos about affiliate earning in youtube. But today,I came to know about a program which teaches us about affiliate marketing totally free.Honestly I haven't tried it yet but I could find good reviews about it.The website is Commision academy. Hope that it would be helpful to you all.