To improve your ability to draw realistically, the best approach would be to practice using blind contour drawings and copying work done by an artist that is admired. This method helps develop your observational skills, strengthens hand-eye coordination, and gives you a better understanding of form and proportion.
Additionally, studying the work of other artists, rather than stealing ideas, can provide valuable insights into techniques and styles that can enhance your own drawing skills. It's important to remember that drawing realistically is a skill that can be learned and improved over time with consistent practice and study.