Terrifying to be honest but felt relatively calm also

Before lunch I was up 400 euros, was really happy with my trading and felt I had made the most of each opportunity. Then the TED went 11 ticks!!! brutal. I didn't even start buying it until it had moved 4 to 5 ticks, and I used my profit for the day to keep myself in the trade otherwise I would have stopped out. My worst print was -1100... fucking -1500 in 1 trade... stupid. The terrifying thing was my size was so big, 1 tick was worth 400 euros at this point, the biggest size I have ever had on (32 by 40) The euribor didn't move and the schatz kept going up like 12 half ticks... infact the euribor eventually moved but down! and they normally move together.. I don't understand why the euribor just didn't move. It was just awful to trade, trading the TED was basically just trading outright on the schatz today. I was sitting there still down a fair whack and I sold 109.620 in the dec 10 schatz and bought 98.940 in the euribor sep 11, and then bought 109.615, sold it again at 109.620, bought 109.615, sold 109.620, bought 109.615, sold 109.620, bought 109.615, sold 109.620 and bought 109.615 and then sold 98.940 on the euribor (to scratch it). Never done anything quite like that before and omg it helped so much, each time I did it I made 50 euros. The spread came back some of the way and finished up 376 lol.. couldn't believe it. Dodged another bullet! give me luck! all those bad beats in poker being repaid??? haha.. I mean really I did good today but I was literally hoovering my mouse at one point getting ready to accept the loss and the prices never traded so I was able to stay in.