That's faith! You know the food is blessed, you know God heard you, you go on and eat it and you're healthy and bubbly, so why is it different when we pray for more pressing needs?
It's not more difficult for God to hear your cry than it is for Him to bless your food...it can be really tempting to keep reminding God when you're desperate, I have a clear notice at the entrance of my room, u see it as soon as u open the door,
"God heard you, just be patient"
Praising while you wait also helps your heart feel merry, Jesus gave a clear instruction when He said "Let not your heart be troubled"
You can pray amiss but you can't praise amiss. God inhabits praises, invite him with words and melodies of adoration. Keep singing His words back to Him, and praise Him with the loving expressions of your soul, because you know He always comes through, "it is through faith and patience that we inherit the promise" while you wait, praise, and have this confidence, according to 1 John 5:14-15
14 This is the [remarkable degree of] confidence which we [as believers are entitled to] have before Him: that [a]if we ask anything according to His will, [that is, consistent with His plan and purpose] He hears us. 15 And if we know [for a fact, as indeed we do] that He hears and listens to us in whatever we ask, we [also] know [with settled and absolute knowledge] that we have [granted to us] the requests which we have asked from Him.