Think of it as a library made up of many books. You can jump in most any place. We recommend that you start with one of the New Testament books, especially Matthew, Mark, Luke, or John. They tell the story of Jesus' life, death, and resurrection. Then read other New Testament books.
Acts tells the story of the early days of the church.
Romans through Jude are letters written to early followers of Jesus and are included in the Bible because they have a timeless quality. The Revelation talks about the last days and the time when God make the world right again. Do not neglect this book, but don't get lost in its images. Again, set aside some time regularly, every day if possible. It does not have to be a long time, but it is an opportunity to help you grow in your relationship with God.