Been there, done that. I can share the strategies that worked great for me. I found it useful to plan those weeks ahead and minimize all distractions. Planning my meals in advance helped me avoid the hassle of grocery shopping and cooking during that time.
I also made Post-it notes with the date of each exam, which I could satisfyingly rip off once the exam was done. To stay motivated, I created a playlist with "epic" songs—video game boss battle themes or movie scores from exciting scenes, like Time by Hans Zimmer—which I listened to while commuting to school to hype myself up.
I minimized chatting online or in person about the exams, allowing me to enter a focused, almost trance-like state on exam days, at least until they were over. Small habits like these help set the right mindset.
As for studying, there's no magic trick—you just have to sit down and grind. Making posters with key points and placing them where you'll see them often (on your bathroom mirror or even in the shower) can be a great way to reinforce what you've learned.