Here are some helpful and encouraging thoughts from J.C. Ryle on reading the Bible.
Do not think you are getting no good from the Bible, merely because you do not see that good day by day. The greatest effects are by no means those which make the most noise, and are most easily observed. The greatest effects are often silent, quiet, and hard to detect at the time they are being produced.
Think of the influence of the moon upon the earth, and of the air upon the human lungs. Remember how silently the dew falls, and how imperceptibly the grass grows. There may be far more doing than you think in your soul by your Bible-reading. (J. C. Ryle, Practical Religion, 136)