I understand your dilemma. It is really helpful to have an overview of the Bible in your mind before you start reading it in detail. This helps to put what you are reading into the context of the "big picture". With this "big picture" in mind, you will find the that the scriptures will open up to you in ways you never thought possible before.
For example, do you know why the very first verse of the New Testament refers you back to the life of David and Abraham in the Old Testament? Figuring out why this is so will put the Bible and the Gospel message in a whole new light for you! Did you know that the New Testament has literally thousands of references back to the Old Testament? Having a good overview of the whole Bible will really be useful in understanding the message God is giving us in His word.
A really helpful discipline is to read the Bible prayerfully and systematically every day. Here is a link to a website which will help you do this and also provide useful comments on each day's readings. If you follow this system, you will have read the Old Testament once and the New Testament twice in the course of a year. Here is the link: www.dailyreadings.org.uk
If you want to come to grips with what the Bible really teaches, why not take the free Bible study course on www.thisisyourbible.com? You may take this course either online or by regular mail.
This course will give you a background in the major themes of the Bible from Genesis to Revelation and will end your confusion as you go through the lessons step by step. As with everything we offer, there is no cost to you other than your time and effort. You will also have a personal tutor to whom you may pose questions either from the course itself or those questions which come to you as you read the Bible.
To sign up for the course, go to www.thisisyourbible.com and click on the “Register” menu item just under the “Learn about your Bible with us” banner. Select the course you wish to do and click on “Register now”. Fill in the registration form and submit it. If you sign up for the free online Bible course, you will be able to start immediately.
I hope you have found this helpful.