To become a full stack developer, you can follow these steps:

1. Gain a strong foundation in HTML, CSS, and JavaScript for front-end development.
2. Learn a server-side programming language like Node.js, Python, or Ruby.
3. Acquire knowledge of databases and how to interact with them using frameworks like MongoDB or MySQL.
4. Familiarize yourself with popular front-end and back-end frameworks.
5. Practice building full stack applications and work on real-world projects to enhance your skills.
6. Stay updated with the latest trends and technologies in the field of full stack development through continuous learning and self-improvement.

Remember, becoming a full stack developer is a continuous learning journey, and hands-on experience is key to mastering the skills required in this field.