Windows 10: Computer won’t turn on and the SD keeps rapidly blinking, how to fix?

Hello!My computer had been working perfectly all day until I went to pick it up and it shut off. I immediately knew something was wrong because similar problems like this has happened before. However, when I press the power button, it still does it turn on and the SD on the side of the computer keeps blinking rapidly like it’s struggling. I’ve gotten it to flash a few times, and to also flash to the login screen however, the login screen only stays open at a certain angle when I tip my computer upwards. How do I fix the problem? Is it an internal issue? The longest I’ve been able to keep it on

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Need for a response ASAP, thanks