Ah I c what you did now. I didn't read the part where you added the last 3 sets the last time I looked at it.

How long have you been running this 5/3/1? It sounds like this is your first cycle... If so, you either way over estimated your 1RM or you didn't multiply it by 90% first (which then becomes your "1RM" that your values are based off of) or both.

There is no way you should be failing on the first or second cycle... at least that is how I see the intent of this program.

IW