To find the one true God, one must first break free from one’s pre-conceived ideas. Then by pursuing truth, wherever that leads, the true God will be found.
To do otherwise, is to worship a god of our own creation: also called idolatry, i.e. worshipping a fixed image of what we think God is supposed to be like.
Isaiah 2:8 New Revised Standard Version (NRSV)
8 Their land is filled with idols;
they bow down to the work of their hands,
to what their own fingers have made.
Idolatry happens not because people deliberately worship a false god (who in their right mind would do that?). Idolatry is when people in their intellectual arrogance think the true God is correctly represented by some fixed image / idea, and go on to worship it.
There is no guarantee that your existing religious ideas accurately portray the one true God. Being faithful to God is not the same as being faithful to your man-made religious traditions (precisely what the Pharisees were guilty of).
[Without such attitude, the Reformation would never have occurred, and there would be no Protestant church distinct from the Roman Catholic church.]
Exodus 3:13-14 New Revised Standard Version (NRSV)
The Divine Name Revealed
13 But Moses said to God, “If I come to the Israelites and say to them, ‘The God of your ancestors has sent me to you,’ and they ask me, ‘What is his name?’ what shall I say to them?” 14 God said to Moses, “I am who I am.”[a] He said further, “Thus you shall say to the Israelites, ‘I am has sent me to you.’”
[a]: Or I am what I am or I will be what I will be