Anybody know a legit place to get help with a Java project?

I'm taking Data Structures this semester and this Java assignment has completely wrecked my week. The project looked manageable at first, but now I'm deep into debugging and somehow every fix creates two new problems.

I've been trying to figure out this linked list issue since last night and I'm honestly running out of time. My classmates are just as lost and office hours were packed.

At this point I'm just looking for a legit site or service students actually use for Java help because half the stuff I find online feels fake af.