Hi!
I can help you in installing extensions and show you how it can be done.
I can also resolve issues regarding my cart.
I am a full-stack developer with understanding of PHP development and designing.
I also have working experience in both front end and backend technologies (html, css, angular, react, .net).
I also have an experience of ecommerce web applications development (magento, magento 2.0, wordpress etc).
Kindly message me so we can discuss in detail.