Why is it...

...Everytime something seems to finally br going right, 2 things then go wrong?
Why is it everytime i finish something, 2 more things then need to be done?
Why is it whenever i seem to know what's going on, 2 things seem to knock me out of place?
Why is it that life is 1 step forwards, 2 steps back?

I would go into reasons behind this post, but right now i really don't feel like it. Sorry and all that, but sometimes things just ain't as easy to word as they should be.