I have watched so many videos of people asking for guidance and converting from one religion(or non at all!) to another.

But the one thing that I noticed is that they all sincerely prayed for guidence.

But I have a tip for you that most people don't know about:
Write out your prayer for guidence on a peice of paper, and do your best to make it the best prayer that you can posibly write with your writing ability.
second, pray in the darkest hour of the night, when everyone is asleep. this is a time of true sincerity, and no showing off for anyone. you truly want guidence.
lastly, humble yourself before the One you are asking guidance from. to me, the utmost form of humility is prostration.

I hope this helps.

Also, may I ask which 3 one you narrowed it down to? maybe I can help you with some reading/viewing material in a private message if you wish...