Adobe Acrobat hates me. PDF Help. SOS.

I have created a pdf using Microsoft word with the intention of having it filled by a another party. I imported it into adobe acrobat pro, and then sent for a signature to myself as a test, however some fields are not allowed to be completed only some and i cannot find a correlation in why only some i can fill in and others are not allowed. The ones i could fill out are blue and the others remained white..... How to i make the entire document fillable?

P.S. have now spent 27 hours learning this program(adobe and Word) and trying to create documents. A few more hours and im checking myself into a mental hospital for insanity.

Yes, I know I am dramatic.