I think I'm afraid of losing myself or getting completely lost.
When I was around 13, I had two nightmares about unknowingly getting into mutation-causing radiation, and one where I realized I was slowly being brainwashed, and forced myself awake for each, as though I thought I was about to die (I love fiction about that type of thing, though. Especially amnesia). And as for the getting lost version, I think the main proof is when my brother used to use cheat codes in games, and at least once when he did it with a Sonic game, and sonic ended up leaving the game world and falling through nothingness, I had to turn away and tell him to make it stop.
I also dislike tiny bugs, or bugs that surprise me. Especially ants, which can appear anywhere, and can't fly off of me, or stuff like spiders or shelled bugs that may appear inside a cabinent with food, or inside a washcloth. It's that sneaky stuff that bothers me. If I know they're there, I don't mind them at all (except ants. They seem so dirty, with the little slime trails and stuff). I don't like that feeling of surprise and being snuck up on. >_>"
(like BestestShirt said earlier about ants. Yay, it's not just me.)
I used to want to hurry up and be able to drive, but after actually trying to control the wheel, it seems like I've wanted to less and less. I think the responsibility makes me nervous.
If I'm in the passenger seat, I don't pay much attention at all to stuff and usually feel very relaxed (and it's fun directing people based on maps - but my dad seems to dislike going anywhere he hasn't been before... and never trusts my directions, even though they always end up being right).
But, when I'm in the driver's seat, I feel like I can't see enough out the windows (can't even tell if I'm in between the lines on the road), I'm worried that other people won't see stop signs and run into me, and I'd usually check the speedometer and the side-view mirrors more than I look out the front. I've gotten to where I feel nervous just considering trying to learn to drive again. I'd like to drive places, but without feeling like it'd be my fault if I wreck (and as long as I feel I'm not a good enough driver, I'm going to feel that way).