过得很充实。

You use it as a predicate. It usually follows a period of time. You can talk about a day, a week, or a year. Just say 我最近过得很充实. It sounds positive and grounded. It shows you are in control of your life. It is like giving yourself a high-five for being productive.

Use it when someone asks 'How have you been?' Use it after a long day of sightseeing. It is great for end-of-year reflections. Use it when you have started a new hobby. It works well in job interviews too. It shows you are an active person. It is perfect for social media captions about your weekend.

Don't use it if you are exhausted and miserable. If you are 'burnt out,' this is too positive. Avoid it if you were just busy with mindless chores. It implies growth or satisfaction. Don't use it for a single 5-minute task. It needs a longer duration to feel 'full.' If you just sat on the couch, this is a lie!

Chinese culture highly values diligence and self-improvement. Being 'idle' is often seen as a waste. 充实 (chōngshí) reflects the Confucian ideal of constant learning. It suggests a balanced life of work and meaning. It is a very 'virtuous' way to describe your time. It shows you are not 'wasting your youth.'

You can add adverbs like 非常 or 特别. You can ask others 你过得充实吗?. Sometimes people say 生活很充实 to describe their general lifestyle. If you want to be poetic, use 充实的一天. It is a versatile building block for your daily Chinese.