Help Blackhat backlinks needed?

I tried Getting backlinks getting in genuine but failed I need to know some of blackhat backlinks technique

I Think My on page Seo is Prefect and the content is legitimate too but the only reason I am lacking in ranking is because of backlinks my site is 8-months old and about 120 blog posts even the keyword research is also prefect

Tell me what should I do? Or should I wait I am getting about 600 pageviews per day