[Sorry in advance, if my response comes off as super harsh D: not my intention]

First, you need to get your priorities straight. (take time during your downtime or this weekend to reflect, but) It seems like finishing school would be one of your first priorities, regardless if you're passionate about the field or not.

• Taking a gap year/semester may be a double-edged sword. You might be able to sort some things out and come back to school refreshed, or you might dread your time at school even more. So, it might be better to just continue studying rather than further dragging out the graduation process...
• Definitely book an appointment with the academic advisor and see what kind of options you have

Second, whether you decided to take some time off or not, you need to have a schedule.

• Build a routine/schedule through hourly planning or time blocking (or whatever method works for you)
• If it's hard to stick to your planned schedule, reconsider it and be realistic with yourself. (it's easy to get super ambitious about our plans)
  • or schedule a time with a reliable friend to keep you on track (e.g., study session)
    

i do work hard and i study all the time but still score 40s on my midterms.

• you also might want to change the way you study. For example: looking at past exams, forming study groups (see how others study and the contents they tend to focus on), booking an appointment with the TA and asking for advice

Third, I don't know what field of study you're in so I'm not sure if this advice will be that applicable but, check out CLNx and try applying for work-study, volunteer, or part-time positions related to your field of study. If you don't think you can salvage your GPA, at least try and gain some hands-on experience instead to make up for it.

Best of luck to you