If you blowup because you bought 800 shares at 77.98 and sold at 75.30, that was only $2144. If that's all you lost, you should consider yourself lucky. I've lot far more than that on single trades, as I'm sure most other traders that have traded long enough have also.
But if $2144 is considered a blowup for your size account, then the biggest mistake is using way too much leverage. $77.98 *800 = $62k which was probably 10X your account size?
10X leverage is deadly when it is concentrated in a single position, esp. a volatile equity where you have purposefully opened a position when there was earnings news and economic news.
I know leverage is tempting when you have a small account, but I think it's better to use more like 4X intraday max, 2X in afterhours, and none overnight. If it isn't worth trading without using more leverage, you shouldn't be trading.
If you only have 10k account and no other savings, you shouldn't be trading anyway IMO, esp. if you don't have another job/source of income. I can't even imagine being in someone's shoes that has to trade a 10k and feed a family with the profits. That's just a terrible situation to be in.
The average annual pay in the USA is about $30k, so if you only have a $10k account, then you need to make 300% on it just to make the same as an average worker. And I think anyone that had the brains to figure out how to open a brokerage account and even attempt to trade, that person should be able to get get a jobs that pays alot more.