Didn't follow instructions on front of exam answer book, will this be a problem?

Basically, during my 2 university exams which were handwritten, I was so nervous (being the first ever time I had sat uni exams) that I forgot to follow one of the instructions on the front of the answer booklet - Start each new answer on a new page, I just began new answers a couple of lines below the previous one. I was wondering why people in the exam were managing to get through so many answer books despite them having tons of pages when I only used one and now I have found out why (I don't know how alarm bells didn't start ringing in my head at that point).
My question is am I likely to get marked down for this or am I likely to get away with it? Worried the markers might just disregard answers that are on the same page as another. I am already nervous enough as it is waiting until January for the results without this.

Basically, during my 2 university exams which were handwritten, I was so nervous (being the first ever time I had sat uni exams) that I forgot to follow one of the instructions on the front of the answer booklet - Start each new answer on a new page, I just began new answers a couple of lines below the previous one. I was wondering why people in the exam were managing to get through so many answer books despite them having tons of pages when I only used one and now I have found out why (I don't know how alarm bells didn't start ringing in my head at that point).
My question is am I likely to get marked down for this or am I likely to get away with it? Worried the markers might just disregard answers that are on the same page as another. I am already nervous enough as it is waiting until January for the results without this.