I just finished my first week of nursing school and so far I am loving it. I am concerned, however, that I may have purchased the wrong stethoscope for me. When taking BP's last week, I was having trouble hearing the beats. I know that learning to take BP's is difficult to master, but if I need to upgrade my stethoscope so I can hear better, I would like to do it now so I don't get left behind. Does anyone have any feedback or suggestions for me? Thank you!