Hi
@medschool342 -
I agree w/ the other posters in this thread that you should take a representative diagnostic or FL soon to see where you stand. In general, though, taking the MCAT 25 days after you've finished physics & chemistry content review is an
extremely tight timeline. You'll almost certainly need some time to review biology & biochemistry, as well as psychology/sociology, which requires both heavy memorization of the technical definitions of the various terms that are tested and a familiarity with research methods.
However, the really key point is that the MCAT is not primarily—or at least not exclusively—a test of content. The MCAT is interested in seeing how you apply your knowledge in the context of new information provided by the passages, within very specific timing constraints. For this reason, the vast, vast, vast majority of students find that they need to invest a considerable amount of time in learning how to take the test, which means taking multiple realistic practice exams and carefully reviewing the results to find areas of improvement. It's tough to rush this process beyond a certain point -- each test will take up the better part of the day, and doing a thorough review should take at least as long as taking the test itself. You then need to allocate some degree of mental energy (and time) to internalize the lessons you learn from reviewing a practice test and to act on them. Practice tests are also a useful way to assess whether you've been learning the content in a way that translates to success on the test, and if not, you'll need some time to recalibrate.
So, yes -- take a test and see how it goes -- but based on what you've described, it sounds like postponing the test may be a realistic idea. If you make that decision, the next step will be to figure out a plan for next semester & how to avoid the pitfalls that came up this semester, and then to execute!