Hello,
I saw the screenshot you attached.
1) To change the text read more you need to and use the loco translate plugin and choose the correct path to translate the string.
Your Path Will be Loco Translate >> Plugins >> WooCommerce.
Screenshot for Clarification: https://ibb.co/5T90Znw
You can also watch the video in our detailed documentation in the following link:
https://www.youtube.com/watch?v=D3NsDdMzsls
And for the navigation it seems that you are using too many items for the menu. Try reducing the number of items in the main menu. This will fix the issue.
Best Regards.