What's your process to optimize page? If you're done with all your optimize process and your rank is the same, what are your next steps to improve your rank?

In order to optimize your page, you need to carefully choose the keywords which are relevant and on point of the subject of the page, and make sure to include them within your title to ensure more exposure. Next you have to make sure than the head-title and the images included are also tagged.

As for the unchanging rank, you need to work on providing more unique keywords and titles which will help you stand out more.