This is unprecedented, there has been nothing like this ever. Exchanges, like banks, are an extremely important part of an economy. I don’t think they will be shut down. But if you have seen yesterday’s circular, all F&O positions could potentially be pushed to reduce and margins increased. I guess it is the prudent think for SEBI to do when there is so much uncertainty. This will anyways be temporary.
Btw, when running a drawdown (losing money when trading), the best thing to do is reduce the trading size to as small as possible, maybe even take a small break from trading. Trying to make it all back quickly would mean you taking unnecessary risk which reduces the chances of making back up. I know easier said than done, but it is the right thing to do.