itch.io

Hi, I'm a rookie developer and I only know basic Java (the only language that I'm learning/focusing at the moment, ). My question is, can anyone point me at the right direction or tips what game engines should I use, I only know LibGDX but haven't tinkered with it that much. I'm really itching on developing not just games but useful programs as well that can be used on a daily basis. I always see C# (Unity) and C++ most of the time thinking that my knowledge at this language will just go to waste. Thanks and good day!