Practice Exams

Hello everyone, this is Firefly :)..I had a question to ask. As the Level1 exam is almost approaching, I have been doing the practice paper. Funnily, I am getting almost the same percentage score (overall) for every test (around 65-70%), though of course, the percentage score of different sections vary. Strangely enough, even another friend of mine, who’s also a Level 1 candidate seems to be noticing the same trend in his performance!!
Can anyone tell me, is this a normal thing to happen? More importantly, how can we break this 70% barrier and score more 🙁 ???
Thanks a lot in advance!!