Few quick tips here to make your blog profitable:
Tip1: Select niche of your expertise or of your interest
Tip2: Be consistent on publishing posts, do keyword research before you post.
Tip3: Keep this thumb formula of writing article with medium search volume and low search difficulty.
Tip4: Spend only one day for writing the article rest of the days use to promote it.
Tip5: Be active on social media groups and broadcasts which are moblile based.
Tip6: Update your knowledge regularly so that you can publish relevant and fresh content.