Thanks for trusting in the Trainer and nice to have you here —
The Trainer study schedules are designed to combine your Trainer work with additional drill problems and practice tests from outside the book —
If you have the time, you can certainly try to fit all that in before your course, but my recommendation would be to either
a) Study the entire Trainer by itself before your course begins, but without using a corresponding study schedule or doing extra outside practice other than maybe just a diagnostic test to get acquainted with the exam.
b) Study the first 15 lessons of the Trainer (again, without much other work), which lay out the basic fundamentals of the LSAT, before your course begins, and then combine the rest of the Trainer with your coursework.
I think either would be just fine.
Then on the other side, you do want to make sure that either during or after the course, you have plenty of time to get in lots of drill work and practice tests — basically, you study for the LSAT by getting to know about it and how to best attack it, and then practicing effective methods again and again until they become habit — so, you want to plan according to that model, and make sure you
a) don’t spend too much of your time learning about the test at the sake of not getting enough practice afterwards
b) don’t rush into too much practice without enough instruction.
HTH and good luck with your studies — if you have any follow-up or if you need me along the way, just let me know —