I was writing a small but semi algorithm-heavy library in C# that didn't rely much on other libraries. I later decided to port it to Java and realized that the more C#-like I had written the original code the harder it was to port. Later when trying to port it to JavaScript I ended up re-writing the C#/Java code to rely less on the standard libraries since each standard library differed so much. At that point my code started to look very procedural in the OO languages possibly similar to what you've been doing in Java.

I came to the realization I didn't even need a lot of the language features for what I was doing and decided to switch it to C to not have to maintain various versions of the library and it was a steep learning curve but I've come to really enjoy the simplicity but powerful capabilities of C.