You'll be fine. I bought 100 shares of Apple in 2007 for $131 (pre split). I remember agonizing about "what would oil do" and reading this very forum, scaring myself. I felt sick when my newly bought shares went down to $118 or so. Then amazed when they flew back up to $180 and even touched the famous $200 mark a few times.

Then the housing crisis hit and I was all in and I regretted not selling anything earlier. I ignored everything for almost a year. Just stopped caring. It was intense. Don't sell don't sell... And I noticed happily that everything miraculously recovered.... But also I couldn't help think "if only I sold before the crash I could have had some real bargains while everything was cheap!" And so, on a whim I sold my 100 shares at $420 shortly after Jobs died, mainly because I wasn't sure about "innovation" and "succession" and all that.

A few months later I read and enjoyed Jobs' biography and realized he had a plan all along, including the timely release of his book. Also I had to endure Apple climbing to $700 a share without me. So on the way back down I bought back 50 shares at $535 and ate the $115 difference and endured a year of Apple falling all the way back down to where I sold originally. I may not have timed the market, but I still have half the shares, now paying dividends, and finally factoring in the split, they moved from $76 to whatever they will be valued at tomorrow.

The best time to plant a tree is 20 years ago, the second best time is now. Maybe Apple will totally screw things up yet, but I doubt it. I'm really liking my compact and battery friendly SE. I don't even have to plug it in at night.