Just a little background. Got contacted by a Facebook recruiter a few weeks back. He told me that he'd give me 3-4 weeks for the tech screen. I said ok. When he said that, I didnt know what was really involved for the tech screen and had never seen a leetcode problem in my life. At my job we never do these types of problems so a lot of the easy leetcode problems are giving me trouble.

I have been grinding leetcode every single day since the call. In the morning before work and at nights after work. I even took some days off work so I could study more. After 1 week of grinding I realized that there's no way I'd be prepared for the interview so I set up a call with the recruiter and asked him to reschedule for a date in 3 months to prepare for it. He said no. He said the max he could give me was 2 more weeks. So I had no choice but to accept it.

The interview is now in 3 weeks. I will fail it. The easy questions are still giving me trouble. I don't want to show up unprepared. Should I cancel the interview? Or should I beg him again to give me 3 months? There's still three weeks before the interview starts so it wouldn't be short notice for them. Or should I just show up in 3 weeks to the interview and embarrass myself?

Any advice, opinion or comment would be appreciated. Thanks in advance.