Scoring with Timing - need score out of total questions, not just those answered

Hi, apologies if this question has already been asked, I can't seem to find an answer and I'm new to Qualtrics!
I have set up a test in Qualtrics with a total of 30 questions, with timing (putting each question in it's own block and I've then added branching to check how much time has passed using Q_TotalDuration before advancing to the next question and if the time is up, ending the survey). I'm using the Scoring function to provide the final score at the end of the survey.
I'm trying to work out a way to show the score as a total out of 30 regardless of how many questions have been answered during the set time limit. At the moment once the time runs out, the score is showing as a total out of the number of questions the respondent managed to answer during the limit but I need it to be out of 30.
I do not have any forced responses. I'm not the best with JS but am willing to give anything a try!
Please let me know if you need more info.
Thanks in advance for any help!