One of the most dramatic adjustments is adapting to the quarter system, since most transfer institutions employ semesters. When students realize that they may not be in good academic standing, they should meet with a Dean's Office counselor to discuss their options. However, this isn't always the best way to proceed. This clearly is an individual decision, so seeking out the advice of an experienced academic counselor can be helpful. Finally, it's usually not wise for students to try to make up for a failing grade by taking additional units the following quarter.
Probation is an important and, in many ways, frightening issue.
If you suspect you may be on probation, or perhaps subject to disqualification, I hope you will visit your Dean's Office as soon as possible.