How do I leave everything and lean in Devotion of God?

In the case of Hinduism:

1. Practice Karmayoga.
2. Instead of consuming insta reels, movies, read Upanishads/bhagwatam.
3. Daily practice of meditation (essential to keep you sane).
4. Find a guru who is respectable if possible else leave it.

Research on God. First, get to know who God is and his character. Qualities of God. Then you get an idea of what to follow, and it will lead. I did it 10yrs back and now I'm following only bible. Because bible has all answers for life. Purpose of life.