Pay my debts and be worry-free

I went to the Erawan Shrine last month to pray to the four-faced Buddha to clear off my debts soon so that I could live a worry-free life and support my parents well.

But to date, no windfall has come yet, sigh. If I just pray with both my hands clasped and and with all my heart, not with any joss sticks, will it do?

I always believe as long as I pray with a sincere heart, my prayers should be heard. But why is the four-faced Buddha not attending to my prayers yet? Sigh.