Yes, if you are new to making money online then your mind may divert to multiple online jobs like survey, Adsense, blogging, affiliate marketing, SEO, link building etc.
You need to stick with one for better result, this way you would be able to focus on what you are doing and you can get excellence in that particular subject.
Otherwise, you may not know where you started and where you are going to end as internet is also known as black hole .......it has no limitation in terms of anything, internet is full of almost every thing, even scam as well so you also have to know how to go through scam and how to recognize it.