Hi,
Hold on. You claim that you could recreate this forum, but you are not comfortable with JS.
Your portfolio only contains the projects from the first course and you ask if you are ready to become a junior web developer.
Solely based on that the answer is no.
If you are not comfortable with JS, I don’t understand how you manage(d) the front end libraries course, the data visualization course and the apis and microservices course.
Don’t get this wrong, but purely based on your answers you demonstrate a lack of understanding what web development means. To rebuild this forum, you do not only need an understanding of responsive web design and JS, but also of how to set up a website on a hosting provider, know at least one server-side programming language and how to use a database.
The good news is, that you don’t need all of that to start as a junior front-end developer: responsive web design (HTML5 and CSS3), Javascript and some front-end libraries like Bootstrap and jQuery will do.
“Patience … you must have” (Yoda)
Keep it up,
Cheers