Patience, is it learned or is it just in you?

I have been thinking alot about patience lately and praying about it alot lately.  Is it just something that people have or is it learned?  I have it sometimes and then sometimes I have none.  What is the deal God?  Can I get more of it?  Can I buy some somewhere?  I seem to be getting a shorter fuse everyday!  I know that life is UBER busy right now and eventually things will slow down.  At least that is what I keep telling myself!  All I keep thinking is "Come on SUMMER!".  When summer is here, I will still be working two jobs, but at least a few days I can be sane and float in the pool!  Come on SUMMER!  Maybe I should start a count down on the fridge.  That's what I'll do!  Darn, I have to clean the pool first!  UGH!