Can I get a little help here? Or is it to figured out by myself?

The world seems to grow so rapidly in technologies that many languages arise. How to search for one that is suitable for oneself and at the same time a very useful one?

I’m a computer science student. I’m interested in C, Java when it comes to programming languages. And I like Operating Systems,Cryptography(just started) and Networking(in pursuit of learning).

Now, I got my final year project coming up this Jan, and I don’t really have an idea. I started to do Steganography Project in java(embedding text in bmp images) but I wasn’t able to complete it.

Can I get any suggestions on what current world is dealing with now? Because every time I start searching in Google to know things and figure out what I want to do or about what I can be interested in, I just end up doing this searching the whole time. And in the end, I’m where I started.

Does anyone have any suggestions or since it deals with my interest, I have to get it out myself(I’m finding it very hard- Any help with finding my interest will also be appreciated)?

Eagerly looking for your responses, Thank You.