Not to sound rude from the start but you sound like you are completely lost in tilt....plus using horrible BRM with a slice stupid on the side.
Now to move on...... Start off by Relaxing.
If you a breakeven plus player at SSS, then you should know about variance, downswing and how poker can kick you while you are down.
Having said that, you have to realize that moving from SSS to BSS is a large learning curve where you should "expect" to lose a fair chunk of your bankroll due to the new concepts you have to learn. Walking into BSS from SSS expecting to maintain your ROI is silly.
Also, you are talking in terms of 100 hands over a few days....not a downswing but a learning curve. Getting all worked up about it is wrong.
Uhg, enough stating the obvious about your mistakes.
Things you should do now.
1. If you play 10 hours a week of poker. Split it up into 7 hours of SSS at a limit you are breakeven plus(within your BRM), then 3 hours a week at BSS at .01/.02. Do not expect to make money but break even with your SSS vs your BSS and just learn how to play BSS. Positive ROI will come in time.
2. Stop seeing how other limits are.... play at your proper Bank roll limit. When your bankroll can support you losing 10 buy ins at the next level, then play for 10 buy ins at the new level to see how you fair.
3. Read the forums about real downswings, variance, phsycology of poker till you understand what goes on other than the cards, so you feel better when you lose AND win.
4. If you want to play cash, do not go back to SnGs. Learn one till you are good at it before you add another. If you want to play SnGs, do that and do not play cash. One does not jump between learning languages becuase you never really become fluent, this is the exact same thing.
5. GO to the hand posting forum and post hands so people can help straighten out your game
and last but most important. Figure out why you are playing poker. For fun, to play with friends, to be famous, to win money, to waste time, because it is cool, because your grandfather did.....if you can admit honestly why you are playing poker, things get alot easier after that....