You should be proud of the exam in which you achieved 75%. This means that you have spent your time wisely and got a good perception of how much studying you need in order to reach the minimum standard required.
I would say that first time passes in all exams with an average of 75% - 80% is quite an achievement. - At least if you are using the time you save to study something you actually might have some use for in the air.
Happy new year!