Be careful about what you see, read or hear! Many "ear-tickling" teachings are concocted by those who don't necessarily know what they're talking about. They "hear" or "read" something, then put their own twist on it - and, suddenly, it becomes "doctrine."
For instance, there's a "teaching" on the Internet that suggests YHWH's Name supposedly means "Behold hand, behold nail" - and they post the attached meme to "prove" it.
According to Hebrew and Aramaic scholar Andrew Gabriel Roth, the "Behold the Hand Behold the Nail" assertion is not really about YHWH; but rather, it is symbolism and meanings that some Paleo folks think is hidden in the arrangement of the letters.
The VAV/WAW means "hook, hang, nail" - and in the ancient Hebrew form it actually looks kind of like a nail and the reference to it is made in the Torah, where a hook or nail in the Tabernacle is called VAV.
"Yahweh" however, is THIRD person whereas "Ehyeh Asher Ehyeh" (I am that I am) is FIRST person. The latter is what Yahweh calls HIMSELF; the former is what we are supposed to call Him, as it parses out to "Yah Who is" or "Yah, He Who exists".
But the third person Name (Yahweh) is on another level "targummed/understood" as referring to the other Name; hence, "I am that I am" when the other Name is linked to it.