Patience can be a tough (read: near impossible) thing to master. Patience takes patience, I suppose. In fact, I think the only way I'm able to be patient is to constantly remind myself to be so. One of the ways I do this is by trying to trick myself. What I've discovered is that either I'm very tricky or very gullible, because it seems to work!
I try to view all the things that I'm tempted to be impatient about as destinations that I can see, or at least places whose locations are known to me. Rather than searching for love, or my purpose in life, or happiness, I'm traveling to these destinations. This requires a certain measure of knowing yourself and being realistic, which will probably have to be another post all it's own. Anyway, traveling is fun while searching can be frustrating. Not knowing where something is makes you anxious, angry, and agitated. On the other hand just going means, while it may not always be easy, you simply follow your compass. If you let it be, it is quite freeing.
As for the more mundane needs for patience, i.e. for Christmas, for trips, for that shiny new pocket watch...I don't know if I really have any tricks yet. I don't have too much trouble with those, aside from the odd up-swelling of excited anticipation. Really it's just a matter of not fixating on such things so much, I think that's something one develops in time. Some probably take a bit longer than others, and obviously I can't speak for all adults, but I know I'm much more patient in that regard than when I was nine. Basically, you just need to chill out. In any case, I'll think on that a bit. Just be patient...
Ralph Waldo Emerson once said, "I hate quotations. Tell me what you know." Well I know that there have been and will be many a wiser man than I. So here's a quote from one of them, "Yet the fisherman says, 'Patience.' Patience dear God--send me an abundance of it! Although there is no sign of it, the net should, at some time be full." -Abraham Kohn
Ultimately I think it all comes down to trust. Whether it's in God, the universe, yourself, or something else entirely, find a thing in which to place your trust. In the end patience is trust. Thus without trust, you'll never enjoy the happiness that encompasses you now. I guess that makes lesson 5: trust patience...or patiently trust...something like that.