Can you unstake stETH?

Excuse me, I'm a bit confused about something. Could you possibly clarify for me? I've heard the term 'unstaking stETH' mentioned, but I'm not quite sure what it means or how to do it. Could you explain what it entails? Also, is it a complex process, and do I need to be a crypto expert to accomplish it? I'm quite interested in the staking and unstaking processes in the crypto world, but I'm still learning the ropes. Your expertise in this field would be greatly appreciated.