Definitely gonna fail calc 2

How bad is this? I switched majors to CE a year and a half in, I can’t afford to fail a bunch of classes as I’m already graduating in 5 years. I guess I didn’t study as well as I could’ve but I still put in a ton of work for this class and I just bombed the last 3 exams. Is this a bad sign or can I come back from this? I did fine in my other classes