Are you taking it to get into the military or as a graduation requirement? according to this article: "The standardized score received by around half of the ASVAB test takers for each section is 50 or higher. Less than 20% of the test-takers earn a score of 60 or higher. Therefore, the average ASVAB score is 50."
48% isn't bad. In Indiana (I'm not sure what state you are in) the SAT, ACT, or ASVAB is required to graduate, with a minimum ASVAB score of 31%. I'm using my SAT score to graduate but my boyfriend used the ASVAB when he graduated in 2021 and said it was very easy.
Hope this helps. Good luck!