Superstition is treating prayer like a “magic charm” whereby if you say X prayers you will get what you ask for, and if you don’t get it it’s because you prayed wrong or didn’t say enough prayers.
Trust in God is where you say the prayers because you love God, and you ask him sincerely (whether you ask once or 10 times), and then trust him to do the right thing, even if that means he says No.