What are some of the most common mistakes new web developers make, and how can I avoid them?

[Billy]

As a new web developer, I find myself making many mistakes that impact my site's overall functionality and design. What are some of the most common mistakes new web developers make, and how can I avoid them to create a high-quality website?

 

[Kane]

Web developers do a lot of things, some are front end developer, some are backend developer and some are full stack developer. Based on what they do they might be making different kinds of mistakes