The more you read and ponder the subject, the more it will make sense to you, over time. You can also view your own chart on Jos Astro. Try to learn it by looking at specific planets. For example, what is your Sun sign and what does that mean? What house is your Sun in, and how does that influence your life? Then, what aspects to your Sun do you have? Are these good or bad?
By doing this, you will naturally learn and build in your understanding. Remember, each planet represents a basic type of energy. Then sign of the planet is HOW it operates, which can either help or hurt how the planet's basic energy wants to act.