I do not know how old you are, but I started to experience symptoms like you mention my first year of college, I too thought it was "normal" and lived with it until 2 years after I was out of college and my pastor at the time pointed out that my actions and thoughts were not normal and suggested I see a doctor to talk about them. I did and he said I was expereincing psychosis, though he would not give a dx other than Psychotic Disorder NOS. I later moved to a different county and had to find a new pdoc. He kept the same dx for a bit then, changed it to Schizoaffective (Bipolar Type) as I was having severe mood issues as well. I have been on medication since 2008, though we have had to change it a few times in that period of time.

The important thing (as others have said) is not to self-diagnose. Let a doctor decide. However, if you truly are stressed by all of this, get in to a doctor to talk. If you are a minor, the school counselor is definitely a way to start getting help. I know in my county, the school counselor would take to heart what you said and set up a appt with one of the school psychologists for the district (here they would come to the school to talk to you). While the school psychologist still could not diagnose you, they would be able to tell you if you are experiencing true symptoms or not and they would be trained in helping you approach your parents to get the help you need.

ETA: As far as jobs go, if you are in the US, you do not have to disclose it to the employer. Unless you begin to act irratic at work, there is not need for them to know.