My first PT wipe :'(

[GeekMatt]

It's not an unusual sensation—that dread when the tanks HP hits zero or when the party wipes and you KNOW you could've done more. There's a simple solution; practise practise practise! You need to wipe more parties and kill more tanks until your soul goes numb

...no really I'm only half joking here. I'm not suggesting you go out and intentionally kill people, but keep healing and after a while you'll be laughing off your derps. Eventually you realize that it happens no matter how good you are. Simply pressing the wrong button by accident can result in a wipe. Healing in cleric stance is a common tank killer and an ongoing joke amongst the entire healing community. I consider myself a competent healer, but I tend to get pretty reckless when I have a full party of friends and not too long ago there was an FC-wide discussion about me, they were lightheartedly reminiscing about all the times they had died because I was spamming Holy on my White Mage (totally worth it every time, btw). We've also had Healer Limbo competitions, which is a game where you try to see how low you can get the tanks HP without killing him (please note, if the WAR uses holmgang or the DRK uses Living Dead then your score doesn't count.) Obviously I don't recommend doing this stuff with strangers or unwilling sacrifices.

ANYWAYS, rambling aside my point is that a death or wipe isn't necessarily a bad thing. I've been playing consistently since sept '13 and some of my best memories are epic wipes because someone derped. It's just unfortunate when you're with up tight people who can't accept the fact that you're human. Given your panic though, I'd recommend running with friends and FCmates until you've developed your dungeon confidence, because a bad party might scare you off from taking part in instances all together.