Do the online test, print it and see a psychiatrist and never take anybodies word on diagnosis on an online forum. We can help but we aren't doctors. Shrinks stay in med school etc for 12 years ater high school. That doesn't mean they are good so research them.
Talk to loved ones, be honest. If they don't want to understand or support you, well, there are plenty of fish in the sea. Also talk to a therapist because psych meds can't do it all.
This could be anxiety coupled with ADD. You don't know. Sometimes your closet loved one can be the worst at giving advice, they don't want to accept their kid is sick. It's called *stigma*. Insist on seeing a psychiatrist, it's your life, your pain and nobody knows that but you.
Good luck darkjustice