Embarrassing
Embarrassed, Ashamed
い adjective
This is a single kanji with an い on the end, meaning you know it's probably an adjective. What's the adjective form of shame? It could be ashamed or even embarrassing.
Whenever you do something embarrassing, nothing makes it worse than someone pointing and saying, "Hah (は)! Look at this loser!" As if you weren't ashamed enough already.
こんなことを言うのは恥ずかしいんですが、私は安物買いの銭失いみたいなところがあるんですよね。
I feel ashamed to say this, but I tend to waste money on cheap things.