The key to MBE is practice, practice, practice. I am saying this becoz I failed twice and this is what did during my 3rd attempt.
Step -1: choose a course or courses and stick to it. You need to complete at least one course. I did kaplan mbe 6 day course. I liked the lectures because they were shorter and crisper. But i did not like the explanations compared to barbri mbe. I completed kaplan and then did roughly 200-300 barbri mbe as I had no time. But I liked barbri explanations than kaplan though it was too late to switch. A majority liked adaptibar, so you can try that too. Get NCBE qs too, bcos it looks like they are more accurate than kaplan or barbri.
Step - 2: read your outline for every subject thoroughly and then start doing the mbe. Take around 2-3 days for every subject and do the mbe for the next 2-3 days.
Step - 3: you might not be able to do a question in 1:45secs. I nearly took 5-7 mins in the beginning but as you practice you will improve.
Also do sets of 10 or 17 questions Talwar for the first 50qs, then increase it to 33 qs and then 60 or 70 depending on your comfort.
Step -4: as many said key is to read all the explanations even if you get the question correct. Honestly the ones we get correct may be becoz of luck . So read read read explanation and that is key.
Step - 5: again as many said make a mbe rules sheet either handwritten or on comp. I did write as I am not great at typing. But if you know typing it truly helps you to organise the rules. Write down all rules that you guessed or got wrong. You can then see what is most tested in mbe. So that would be helpful for your final review.
Step- 6: do take the simulated mbe at least 3-4 weeks before the exam. That score would give you an idea where you stand in mbe: I got 105 in kaplan and my actual mbe is 126, I know it's bad but guess that 10% improvement helped me. Do simulated mbe 3-4 weeks b4 exam because you improve your weak areas and increase final mbe by 10-50%.
Step - 7: revise the rules sheet that you prepared before the exam.
Step-8: lot of valuable information in this thread. So read through it
Good luck you can do it!!