No. That's not good enough. Suck it up. If you don't take ant chances opportunity will pass you by time and time again. Failure or rejection are always a possibility but that should NOT stop you from living.

You get scared, you freeze up, you start going 'oh no oh no'. That little voice in your head is holding you back, ignore the little bastard. He doesn't want what you want, he wants everything to stay the way it is. Tomorrow could be the first day of an enthralling new chapter or it could just end up another page in your boring ongoing story, you decide.