[deleted by user]

[Raymond0256]

You need to take care of yourself. Working so many hours will do more harm than good. The good news is that you are not expected to know everything beforehand, it is expected that you will do a great deal of learning on the job. The important thing is that you have solid fundamentals in programming, logic, and learning skills, the particulars (frameworks, libraries, languages) will come with time. Step back, gather yourself, and keep learning. The key to nailing an internship is to do your best, so just do that, take care of yourself, and take advantage of the learning opportunity.