Really glad you were able to take a min for SDNWho dares summon me?
But yeah, look at the above mentioned threads. Slow and steady wins the race I'd say, the more you wait the more you'll really have to cram which can get super stressful and I assure you even if you started studying right this minute (don't do that) you still wouldn't feel fully prepared by the time test day rolls around. Regardless, you'll probably feel super unprepared heading into the exam. But the sooner you start (early in the semester leading up to the exam) the more confident you'll feel during and after the exam and realistically the higher your chances of passing. Study time is probably the one biggest factor in success, pretty much the only people who ever fail this exam are the ones who simply don't allot enough study time—going on vacation before the exam, just waiting till a few weeks prior to start studying, etc.