Purposeful regression

I've been having some issues.
I'm letting things get to me at a much deeper level than I should. It's not like this is new, I do it all the time, but now even little things are starting to dig dig dig.
And it's not like everything sucks. Some great things are happening. I figured out my passion, what I want to do with my life, my freaking PURPOSE. That feeling..it's unmatchable. I can't turn back to cluelessness, and I can't be a lost soul anymore. I have something I'm moving towards.
I guess, the problem is, now that I have this big purpose...everything else seems inherently discordant. How can I have figured out what I truly want, but still not be getting...what I want? As in, the little things, the things that are so "normal" for people my age and place in life, I don't have. At all. It's been making me into some sort of mess as of late, this discordance, this cognitive dissonance. How can I be so right and so wrong, at the same time? Does it mean that the right things are out of luck, or am I a victim of the wrong?
I think I need to stop looking for the huge end goal, the big pieces. I found my purpose, this thing I was questing for all along. I need to focus now on my happiness, the happiness I was so able to see when I wasn't trying to kill myself over my future. I feel like I lost control over my future when I have really gained more control over the one thing I actually can control: my efforts in it all. I know what I'm doing.
That's a lie. I have no idea what I'm doing. But I can at least know that I am working, and it will work out. My future is there for the taking. I am going to embrace it, and meanwhile, I need to come back to the present.