do not be afraid because not only Ethereum experienced this, almost all Altcoin has decreased so you have to calm down.
Of course, as a beginner to see all this, you are afraid to start so you have to learn more deeply and know the strategy or ask people who understand better. but calm, the market will recover and the coins potentially grow and will soar, so you will make a profit, so you have to wait patiently for the market to recover, all of this requires a process.