Oh dear! This is not cool at all. Were you not focussing on BN options?? Anyways, you will get plenty of big opportunities in the upcoming days. Volatility will ensure that you get several chances. Dont worry!! We all are with you. I know how it feels to lose 10k in a single day. Nevermind ... Cheers!!
Don't worry ... The most important thing for a day trader is to forget about today and start with fresh mindset tomorrow morning. Lets do it. Good luck!