What Causes Lack Of Focus And Concentration?

hi I have been having a very hard time focusing lately. I start one task and go onto another one without finishing it, I have a hard time reading anything because I get too distracted by surrounding noises and sounds, i am very impatient, and I procrastinate a lot. I want to see a doctor but I am in college away from home right now and I am not sure if they can help with my issue. Any suggestions ?