This is a bit out of my league, trying my best here lol. I don't necessarily know what to look for, but I know for a fact something isn't right on my server. Before I encountered issues, my memory would never go above 6gb or so idle, but now I notice the memory usage just goes up more and more every time chunks get loaded or players join etc.
So from what I have gathered I probably am encountering a memory leak somewhere. I couldn't get MemoryAnalyzer to work with my Java for some reason, so I am using IntelliJ. I have no idea what I am looking for here.