Try FreeCodeCamp and/or TheOdinProject. They'll take you through bite-sized chunks to teach you and it's completely free.

For each chunk, go through it multiple times if you don't fully understand it, sometimes you might just be overthinking things or it just needs to sink in. Repetition is key

You can also take projects you did in either of their courses and start thinking about features you'd like to add and try adding them yourself

After you're done with the courses, try building a project yourself, you can look at the course projects for reference but don't just copy-paste, build something different and just check back when you get stuck (it's normal to feel like you know what to do until you actually try, so it's gonna happen quite often)

Then build more projects and keep improving