I think with this now you can afford premium and have no excuse! next time trading make sure...
1) check position size here
2) make sure your stop is firing before your liquidation and
3) that you are trading on a privileged Bitmex account (go to the calculator above and just below headline you will find a link in red, use that link to open a new account), their marketing scheme allows you to save on trading fees for 6 months.... after which you rinse and repeat ,)