This is all you baby!!! It takes one pretty dedicated and self motivated guy or gal to learn anything online or out of a book without instruction. Once you complete this program and pass your board exam you should be soooo proud. It's all you baby!!
You can only ever say that you understand a concept if you can put it in your own words. Don't ever forget that! Study, study, and study again until it makes sense. If you can take a respiratory topic or concept or one of your mini clinis out of Egans and explain it in your own words then you have mastered it.
Best of luck, we are all on your side. BETT is your clinical provider but we are willing to help with any questions you might have on your didactic studies. Email your questions or ask during group time when time permits. Also dont forget that IU/CCHS has resources and instructors for each of your courses, use those resources.