Should I hodl Ether or sell and invest in something else ? And if yes, then what should that new thing be ?
Yes, you should definitely hold now.
At this point, ethereum has already been oversold and is on the way upwards. If you sell now you'd just be giving away your money to the whales. Don't lock in your losses, lock in profit. Just be patient and wait for the recovery. Ethereum is a solid coin. Remember why you bought it in the first place!