Never mind man, Identify where you went wrong, pop a few more seeds in and start again... You have all the time in the world to grow some Bud's, and aslong as you learn from your mistakes, it'll only get better.
Happens to everyone man don't worry there's tons more seeds out there to be popped learn and move forward bro. Plants always die I just rather kill em when there ready and enjoy the funeral lol R.I.P.
No..........Sorry to say, but............You killed them. Some folks are natural born killers.............. Learn from this, read and study. There may still be a chance for you to blend into society. peace out B