Please, can anyone can give me a review about this 4k game?

Please can anyone help-me with a review?
I’m black.

Other special question too, please:
I’m trying , but I never know what to think and how to use my black wall generated by the joseki on the bottom right corner. I needed to choice other joseki there in this board? When can I try build this wall? How to use?
The player who use the pincer on that position, always looks like ahead for me.

Good week for all :wink:

Thank you very much!!!