Yes I completely understand how hard it can be! Sometimes its still overwhelming to me, its okay, there is absolutely no rush! I will admit, many people convert within a year or so, but don’t let that cause any pressure, I have been investigating for a year now and I am no where near choosing to convert.
Firstly start off by learning about what the church believes in.
https://www.lds.org/manual/gospel-principles?lang=eng (this link is to the Gospel Principles manual, which gives an amazing basis of what the church believes in)
http://www.mormon.org/what-do-mormons-believe this is just for a basic understanding of the church’s beliefs.
The church uses four books. That’s all. The bible, the Book of Mormon, the Doctrine and Covenants, and The Pearl of Great Price.
As for the actual reading, start at the very beginning, the Book of Mormon, and the bible if you haven’t read it already. I am currently rereading the bible, at the same time I am studying the Book of Mormon, I am only at the beginning.
Every now and then I get curious and will read the D&C, but I want to finish the BoM before I do an in depth reading of the D&C and the Pearl of Great Price.
I advise you to go to church, especially for the classes, because there is a Gospel Principles class, at the church I go to this is usually lead by a missionary, which is great because they would love to help you further!
Learn the basics about the church and its beliefs though! You want to know what you’re you’re really getting into first. But read the Book of Mormon too :)
Explore sites like fairmormon.org lds.org and mormon.org
And feel completely comfortable messaging me! :D I would love to chat and answer any questions you might have.