MY FEAR of looking stupid is HOLDING ME BACK

so here it goes ...
there's an opening - something interesting, but it's a bit, well 2 levels higher than where i am now. i am interested to be honest, but i'm not sure i am ready or even qualified for that!
my buddy said i can but do i want to risk it all and look stupid? or should i just give it a go, so what if i look stupid? if its meant to be it will be anyway right?

i dunno man ...
maybe i'll sleep on it and make the decision tomorrow since deadline is tomorrow.