am i failing orientation

I am a new grad working at CICU. been on orientation for 12 weeks (with a 45 day break halfway through bc i failed nclex my first attempt) My manager pulled me into his office to lmk that i am not learning fast enough. This kind of broke me bc i genuinely thought ive been doing good, but clearly not to his expectations. I feel as if my preceptors are not communicating what they think i can improve on (i always ask at the end of the shift and they tell me im doing great). my manager extended my orientation till 02/22. and he said if i don’t meet expectations by then i am fired. kinda sucks bc he made me feel stupid but ik that wasn’t his intentions. what should i do moving forward. i love this unit and i dont wanna go :(