Heads Up Headache!

I learnt a very valuble heads up lesson yesterday, when playing heads up, only play when you can play your A/B game. Normally I can play around 15 heads up sngs in a short period of time playing my A/B game after that it actually starts to physically hurt my head then my C/D/E game starts to get in and and can literally see the money going down the drain. Yesterday I got off to a flying start up $110 dollars after about 15 games, I have $150 sign up bonus that i have to clear on my pokestars account and since the $20 games on pokerstars hadnt been going my way I decided once I had cleared this bonus I would move my roll to full tilt and take advantage of thier $600 sign up bonus and 27% rakeback. I had to play around 50 more games in order ot clear the $150 bonus on stars so I tried to get it all done yesterday. After the 1st 20 games, everything started to flall apart, i was palying worse than them guys on sharkscope with the big fish bowls next to thier name, yet I still kept playing in order to clear the bonus, the result? the graph speaks for itself

So from this, in future when I anticipate my C game or worse kicking in I will end the session, do something else until I feel fit enough to play. F.Y.I ive got about 20 more games to play before ive cleared the bonus, them im off to tilt for some rakeback.