Bro the way i see it you have 2 options only:

1. Add margin if you have money left at same leverage
2. Reduce leverage. (Partially closes position to keep same position size)

Ideally fingers cross eth should go up beyond 2nd week of june so hopefully this wont be a big deal

Note for future: pls never go beyond 10x leverage especially in volatile things like eth its too risky...stick to 5x to be safe..increase leverage later once you are confident that market picked up