What app do you want to build?? Android, ios, something that will run on browser or on pc. You just choose a project and go at it.
Android - Kotlin
Ios - Swift
Browser - javascript
Pc/terminal app - go
First learn basics. I would say you go with go. It's fast, doesn't abstract much and is very easy to get started with. You can learn other when you have basics down.
Tldr;
Let Bernie be Encharge. I am jealous that the US has Bernie. Seeing all this shit storm from afar, I now just believe the US doesn't deserve Bernie at all. He is too good for the US.