Yesterday I listened towatched a video in English. Yesterday I watched a video in English.

Remember, we "watch" videos and "listen" to music or media which don't have images.

She spoked about how to create another version of yourself (?) and to achieve your goals in our life. She spoked about how to create another version of yourself (?) and to achieve your goals in life.

It would be better to start the setence with "The woman in the video spoke about..." as it is unknow to another reader who "she" is What do you mean by another version?

She spoked about how to create another version andof yourself and how to achieve your goals in our life. She spoke about how to create another version of yourself and how to achieve your goals in life.

"spoke" is already past tense. Remember, speak, spoke, has spoken (present, past, past perfect) or, more natural in the US: She talked about how to create another version of yourself and how to achieve your goals in life.

They are many words that I didn't understand and I needed to look (them) in up in the dictionary. They are many words that I didn't understand and I needed to look (them) in up in the dictionary.

They are were many words that I didn't understand andso I need to look inthem up in the dictionary. There were many words that I didn't understand so I need to look them up in the dictionary.

You watched it in the past so this should be past tense.

In my opinion, it's a good method tofor improveing when we want to learn a new language. In my opinion, it's a good method for improving when we want to learn a new language.