Maximum new bloggers make some common mistake such in bellow. 1. Wrong Niche choosing 2. Black Hat SEO 3. Lack of content marketing knowledge 4. Lack of Patience 5. Lack of A-Z blogging knowledge it's the best practice to continue blogging minimum 2 years to get proper results. [Don't quit, quitter never win] Happy Blogging
I would like to add few more mistakes that most bloggers do: 1) Not engaging with readers 2) Not writing for audience, writing purely for SEO 3) Focussing on quantity instead of quality.