They are rediculously leggy because of the incandescent lamp your using. Even a small cfl or the winter sun would do better than that. They can still be ok just get some decent light on them and maybe a fan next time so they stiffen up a bit.
Being a grower and being a successful grower are entirely different . If they counted just people who can grow enough to support themselves daily every year it would be nowhere near 1 in 40 more like about 1 in 5000 . Its not easy to grow dope and most people wont take the risk.
Cannabis is...
Sounds like a your a panicking new grower. What do you mean you 'drowned them' ,you cant drown new sprouts in medium they love water. Reduce watering when or if they surface and dont dig or prod around in there to see how its going in the mean time, just leave it, the process could take up to 10...
The medium is no good for seedlings. Get some coco/ peat etc. Also dont have it so deep in the pot, to a little seedling its like its down a fuckin well.