Go for it
Life is full of uncertainties, we all know that.
Yet, we fear.
"What if my friend dislike me for what I will do?"
"What if I will waste my time for nothing?"
"What if it won't turn out well?"
...
Do it anyway, regardless of your fear.
Because, how can you know whether imagined scenerios will be true?
What if it will actually turn out well? Or even better?
Even the scenerio were true, so what? At least you did it, with all of your hope.
That's what matters.
Just go for it, and embrace what happens next.