How much time did it take you ?

So, i started cs50p about two weeks ago, im about to finish problem set 2 but im getting stuck and i always "abuse" duck.ai ... i have to use google on every assignment (i dont steal peoples solutions but i feel bad about it) ... Is it normal taking this much time to submit assignments ... and worst, i understand the lectures but when i start to code my brain stops working for some reason ... and should i start with cs50x and get back to cs50p after ?