Learning Path Suggestion

Hello World… I have enjoyed the comprehensive and comprehendible instruction that Mosh has presented for SQL, HTML & CSS. I have a concept for a light weight golf event scoring application that I would like to develop on my own. I know this will take an enormous amount of time but I want to learn how to do it on my own regardless of the time it takes. The database model is essentially complete and I now want to develop the skills I need to build the backend. I have experience with VBA (excel) for my professional work but no other real coding experience. I need to immerse myself in a new language to advance the project. I thought about Python but then examined Mosh’s learning path and now think that Java Script may be the way to go. I would greatly appreciate any recommendations. Thank you!

My first programming language is Python
I would recommend you to go with javascript