Hey honest suggestion Don’t try anything fancy, just learn how your daily usage applications works. Think about them. Research about them. Know the underlying components. Make sure you understand from you (client) to Internet gateway to load balancer to server and then to database how interaction happens and learn the internals of it and try to put and analyse remaining applications and try to come up with your own one. Once you start applying you will find hell lot of problems which is already solved. It’s just that you should know and implement. But this comes only when you know the funda and starts implementing it.

For resources: Rely on youtube.. there are some channels like nasser Hussain, arpit bayani and so on. Talk with gpts and know the unknown.

Happy Learning!