Take as many dandelions as you can find, one white china cup, and a porcelain pen. Add a line drawing of a dandelion seed, a few nearby petals, and there you have one magic cup of wishing tea.
Do you know a secret about wishes? I do. Their power lies in admitting to yourself what it is you really want. Then all you have do? Is believe them.
And work your ass off for much longer and in more difficult circumstances than you ever thought possible to make them come true.
Simple as that.
(Alternatively, kidnap a passing fairy godmother).