Simple to Complex Roadmap for Full-stack development (JavaScript Specific)

HTML > CSS > JavaScript > ES6 > React > Node.js > Express > MongoDB > MySQL > Github > Deployment

Do you want to go advanced?

RESTful API > Payment Gateways (Stripe & Paypal) > Firebase > GraphQL > Headless CMS > Next.js (SSR, ISR, SSG)

Do you still want to learn ? here some more

Command Line > React Native > Web Sockets (Socket.io) > Redis > NGINX > Serverless > Docker > AWS

Is that's not enough for you? you are the champ, there are some extras for you.

1. Blockchain (DApps)
2. Augmented Reality
3. WebRTC
4. IoT
5. Streams
6. Electron.js
7. Maps, Geocoding and Geofencing

There are many many more to learn but I think this is enough for this post, Keep learning, Keep improving, and do remember one thing never ever stop learning because there's always "One more thing" to learn.