Avoid jQuery. Since you're young, don't focus on frameworks yet, because by the time you'll have a job a lot will have changed. My advice is to focus on building projects of your own and understanding concepts, maybe even read the code of famous frameworks (they're all open source). Since you like vanilla JS, give Web Components.
I strongly suggest to use Git and properly version your code, that will never be outdated. By doing so, you record your journey and you can also show the world your projects via GitHub, Gitlab or BitBucket.
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Avoid jQuery. Since you're young, don't focus on frameworks yet, because by the time you'll have a job a lot will have changed. My advice is to focus on building projects of your own and understanding concepts, maybe even read the code of famous frameworks (they're all open source). Since you like vanilla JS, give Web Components.
I strongly suggest to use Git and properly version your code, that will never be outdated. By doing so, you record your journey and you can also show the world your projects via GitHub, Gitlab or BitBucket.