Do not work hard, work smart!

I work with Ruby and Ruby on rails (3-6 version) about 9 years. I have more than 10 years of comercial development experience. Ofcource I work with JS (native and frameworks such as Vue and React). But I cant do good staff with HTML and CSS :-( It's not my side. Usualy I work on a backend side. I love Linux and hate Windows. I love ZSH.