What is the meaning of here goes nothing?

"Here goes nothing" is a phrase often used before attempting something challenging, risky, or uncertain. It's a way of expressing:

* Resignation: Acknowledging that the outcome is unknown and likely not great, but accepting the situation and moving forward anyway.

* Humor: Trying to lighten the mood in a stressful situation by injecting a bit of self-deprecating humor.

* Bravado: Attempting to appear confident even though the person is feeling nervous or doubtful.

It can also be used sarcastically to imply that the attempt is doomed to fail.

Examples:

* "I haven't studied at all for this test, but here goes nothing!" (Resignation and humor)

* "I'm going to ask her out even though I'm sure she'll say no. Here goes nothing!" (Bravado)

* "Here goes nothing, trying to fix this computer again!" (Resignation)

Essentially, "here goes nothing" is a way of saying "let's see what happens," often with a touch of humor or resignation.