Learn English – In search of an idiom expressing “To lay the grapes into somebody’s mouth”

"To look high and low for" is an idiomatic phrase about searching everywhere, perhaps with difficulty, for something.

The only "proverb" including this phrase that I could find concerns the quest for wisdom and comes from the Bible's book of Proverbs (14:6) :

6. Cynics look high and low for wisdom - and never find it; the open-minded find it right on their doorstep!

A humorous way to refer to oneself in speech or writing, particularly when you want to emphasize your own situation or role, is yours truly.

From McGraw-Hill's Dictionary of American Slang and Colloquial Expressions, for example:

yours truly:

n. me, the speaker or writer.

If it was up to yours truly, there wouldn’t be any such problem.

or from the Cambridge Dictionary of American Idioms:

yours truly

me

Even though he never graduated from high school, his business ability rivaled anyone's, yours truly included.

Some folks, such as yours truly, can't resist a clever pun or play on words.

Usage notes: usually used as a humorous way of referring to yourself

Endangered Phrases by Steven D. Price (2011) has a little more detail on its origins and register:

yours truly

I.

For whatever reason of modesty (or false modesty) that prevented speakers or writers from using the first-person singular pronoun “I,” the “yours truly” convention was established. It came from the standard letter closing. It sounded mannered when it was first used in the 19th century and even more so now. Other equally stilted circumlocutions for “I” or “me” used in writing are “your reporter” (still found in alumni class notes) and “your correspondent.”

All definitions located via The Free Dictionary.