What are ways through which I can get better at reading judgments and also legal writing?

I've been doing the usual of trying to read one case a day cover to cover BUT BOY DO I STRUGGLE.

Law school was 2 years in covid and I feel like I've been thrown into the deep end.

I start 4th year next year and it hit me last year that the world is not ending so I might as well start doing something.

There's no other way but to practice - that is to say, keep on doing it. Read case laws regularly and get into the habit of it. Soon you'll be used to it, and your speed will improve.