I think that your quest for truth is great. Searchers for truth will find truth.
Keep on asking, and it will be given you; keep on seeking, and you will find; keep on knocking, and it will be opened to you. For everyone asking receives, and everyone seeking finds, and to everyone knocking it will be opened.” (Matt. 7:7, 8) It is proper to “keep on asking” for anything that is in harmony with God’s will. In keeping with Jesus’ words, the apostle John wrote: “This is the confidence that we have toward [God], that, no matter what it is that we ask according to his will, he hears us.”—1 John 5:14.
Prayer is very necessary. Persevere in it.
You also made a valid point with the Trinity doctrine. Most Christians believe in this doctrine. So it's good that you have reasoned better. If your committed to finding true teaching, and pray that he guide you to it, one day you may receive a knock on your door.