[pawy]

Learn how is composed a request, how to build it and how you read it. Iterate on architecture rather than on features. Try out all of them, take only what you need from them.

Check out and learn how to use Docker and the docker-composer ; Check Python & Ruby, choose to one you prefer. To me they are really great for database management (migrations) and administration; Lot of big websites use it in production.

Learn how to use a cache and understand why it is useful.

Check out GoLang and build your self a simple server. (Auth is great for a first approach of golang, i've been on it this week and everything is pretty much worked out by public libs) ;

Get back to SQL