I have been feeling fear and depression?

I am a 14 year old male, the age where people have lots of chemical changes going on in their brain, and lately (more than a week) I've been having bouts of fear about different things, and my thought patterns have been changing. I now question even the simplest of things. The things I fear are in a nutshell becoming insane, dying from an aortic aneurysm (which I know is extremely rare), and the fear that I can't trust anyone, and also an extreme fear of suicide (basically my fear is that if all these fears get so bad I might decide to end it. i don't want to at this point. But then I fear that I might want to but I don't, or won't, recognize it). Back to my thought patterns changing, I used to like knives and guns and things, but now my mind considers them dangerous, bad things, and I agreed to come to the blade show in Atlanta with my dad this weekend, in fact we're already there. Last night, when I was still awake and my dad was asleep, for some reason it felt that because he liked this stuff, he couldn't be trusted, because he was bad, and if I can't trust my father, who can I trust? It also feel the fear that I can't trust ANYONE, or anything. It's like my mind at some level refuses to accept that anything or anyone will help me. It's like there's a rat on a wheel that needs fear to spin. Nothing really seems to be helping, other than getting up and doing stuff, which is discouraging. I don't really know why this is all happening. I think my neck atlas may be out of whack, and my mom (who is an LMT) that when your atlas is out, it can actually alter your perceptions. So I'm going to get that checked out. And I am currently seeing an emotional freedom technique counselor. I have been taking St. John's Wort, vitamin C and B6 to try and help me through the fear (don't ask me why about some of those, my mom just picked them out and said they would help. she explained why but i forgot) , and Valerian Root to help me sleep. My diet, I have pretty much been avoiding all artificial sweeteners lately. I used to not do that. As for the depression, the fear is causing that. What do you think, should I see a psychologist and get his evaluation? Should I get an anti anxiety pill? What's going on here? All of this is extremely scary.