I'm always confused to distinguish these tenses.

Can anyone tell me a easy way to differentiate them?

https://ronemo.com/video/xC7Vv4tD1cl

Trần Nhan

I'm always confused to distinguish these tenses.

Can anyone tell me a easy way to differentiate them?

https://ronemo.com/video/xC7Vv4tD1cl

The source you used is clear but I don't think she clarified the difference well. Here is another source. I think it's excellent for understanding.

Present perfect simple or present perfect continuous? - English Grammar Today - Cambridge Dictionary

Keep in mind that sometimes, either tense can be used with the same meaning.