I feel like a failure and a burden because I’m delayed in graduating

I honestly don’t know what to do anymore. I feel so dumb and like I’m just a burden to my family.
I’m a 4th-year Medical Technology student. I was supposed to graduate (2025), but I failed a subject before, so I was already delayed. I was supposed to graduate in 2026, but now I still have one more failed subject that I wasn’t able to pass.
I really tried my best. I studied while doing my internship, but it became too much. My internship schedule was around 12 hours every day, and when I got home, I was already exhausted and could only sleep. I wanted to do better, but I felt like I was running out of energy.
The hardest part right now is telling my dad and my grandma. They’re expecting me to graduate this month, and I don’t know how to tell them that I still have one subject left and that I won’t be graduating yet.
I know I chose this course because I truly wanted it, and I still want to finish it. But right now, I feel so disappointed in myself and I don’t know how to deal with this feeling