Just keep coding every day. The more you think about this stuff, the more it will stick. I don’t see any need to limit yourself, but if you find yourself getting bored or tired, definitely take a break. Learn to walk the fine line between pushing yourself and burning out.
Repetition in different contexts. It’s as simple as that.
Don’t just be on the FCC site, have your code editor open at the same time!
For example: If you learn how to create a function in different ways, just write a whole bunch of functions that do different things.
If you learn how to do a new kind of loop, go to your editor and write a bunch of loops repeating different things.
The point is to always also apply each lesson, if you can. Perhaps not every single lesson, but certainly those that were a bit tougher and may need some sinking in.
As mentioned, repetition. For syntax, do the codecademy course. They’ll make you type stuff over and over …
What will really help is finding out stuff on your own. For example type a string in your browser console followed by a . “Random”.
You will then see all methods and properties that you can play with. Pick one , check it out on mdn and play around with it. It’s way better to learn this was (reading documentation) than being told “use splice” “use map” etc
Yep repetition… Which sounds so uncomfortable(Not rereading though. Rereading is awful). Here is another take on repetition that I found useful. Link
another way to think about the algorithms is this: you’re not just learning new syntax, you are also learning problem solving more generally. Using arr.reduce() or whatever is helpful, but what is also helpful is having a bunch of solved problems up your sleeve so the next time you are solving a problem in real life you can think ‘oh this is like the time I had to do one thing over and over on the elements in an array to produce a final number’. So you can practice the algorithms with slightly different values or desired outcomes so you get used to recognising the patterns of thinking that become useful to you.