First, familiarize yourself with different manga genres. Try copying simple manga panels to understand the composition and framing. And don't forget to keep practicing regularly to improve your skills.
Start by getting some basic drawing tools like pencils and paper. Then, practice simple shapes and lines to build your hand-eye coordination.
For beginners, it's a good idea to start by observing manga styles you like. Study the proportions and features of characters. Also, learn about basic anatomy and perspective to give your drawings depth and realism.