Lets face it: if youre doing poorly, and continue to do poorly - you have no one to blame but yourself, although if the dropping out is for non-academic purposes, we would have a different conversation - lets focus on grades alone here. Personal problems are personal problems and a separate story.
Multiple sources are available to help you succeed. I would imagine faculty must go through some extensive decision making together when it comes to failing student. I cannot imagine faculty prohibiting the progress and development of their students. At this stage of the game its more of 'do you know why youre saying what youre saying? do you know why you chose to do what you set out do' versus 'can you describe/identify what you are performing here?'.
Its important to constantly reflect on your performance. If you notice trends, just gotta speak up. Have an active voice, the second you feel even slightly concerned, contact your professors, contact your classmates and work together on improving.
I personally was on the verge of failing a class myself. At our school we are required to maintain a 3.0 GPA cumulatively, but you must pass the final and exams (which are treated separate) with >73%. After performing poorly on Exam 1 (77%), I changed my approach to studying for that class, put in more time, and Exam 2 turned out to be worse, and then the third exam I completely failed (61%). After working with my teachers for ~1 month, I finally identified my issue: I took tests too fast. It was unfortunate to have needed to take 3 exams poorly to have realized my error, but once I slowed down my pace, fully understood my thought process, and I completely murdered Exam 4 (89%).
Do not be consumed by the fear potentially failing. It is through those mistakes that we can only grow. Work with your faculty and classmates as a team. If you see a student struggling - lend over a hand. Rise and fall as a cohort.