Expenses, expenses

Why must life be so expensive? I am trying hard to save, but there are always expected and unexpected expenses coming along the way... Being good with shopping for the last few months, I have probably saved a few hundred dollars. However, a stupid mistake costs me $550. Oh well, I guess lesson learned. There will be also another $375k of "expected" expense in my life... God, please let me know this is the right decision made.