Yeah please do take your meds if you feel yourself slipping into a deep depression. I hate the idea of being forced to take pills and impulsively quit antidepressants for a month or so. Then I shot into mania and earned a bipolar diagnosis. Meds can make your life way easier and anything that can help alleviate the pain of the mentally is is really worth pursuing.
I am almost 20 and have been dealing with social isolation and feelings of emptiness and being misunderstood for years. You have done the right thing by joining this forum as we are all braving similar problems. Many of us have lots of advice and empathy to offer. It's hard to see now, but things will get better.