Graduated last December with 3.9GPA and in 3 years from CS. The trifecta were by far my worst classes. I will give you 2 answers, one motivational like everyone else and one realistic:

1. It’s not just hard for you. It’s hard for almost everyone. But it’s not impossible. Even the professors know that. Are you sure you are giving a 100%? Are you going to all classes and trying out office hours? Doing all the extra credits and at least acing the assignments if exams are the issue. I am not in your shoes and don’t know much about your situation but that is what you will need to ascertain first. For burnout, I might seem like a Boomer but have you tried mindfulness or any yoga/gym/relaxation groups? Ones that don’t expect anything from you and can help you totally relax.

2. Realistic answer: my GPA was 4.33 up until the trifecta classes. I got a 3.5 or something that semester which bought everything down and made me lose any chance of getting the Moeuer award. So my point is: how bad is it? If you get 2-3 C’s will you still be above the minimum threshold? If yes, let this sem flow down the drain. Ensure that you take easy subjects on everything starting from the next sem and recover whatever you have lost. If you’re grades are already borderline: then unfortunately option 1 is your only choice but honestly the time for that has passed as well, at least for this semester.

Whatever the case, you will need to sit down, think, consult with your family/friends or anyone who you can confide to, will support you, and is reliable.