Reversing a Stock Sell

I got out of Wendy's Stock at $6.75 a share.  After a few weeks I realized I had existed out of a good investment long term.  Thanks fully I started re buying it at $6.40 a share all the way up to $8.50.  I have a nice position in it once again and am collecting the Dividend, which has doubled in the mean time.  Being able to admit when you are wrong in a stock and undoing it is a very valuable trait to have.  Good luck investing.  Tony