What Help Makes HESI A2 Preparation Easier?

I have started studying for my HESI A2 exam, but I feel like there are many areas to cover and I want to use my time wisely. Some topics are easy, while others need more practice and review. I noticed students talking about a HESI A2 help service and wanted to know what kind of support people find useful during preparation. Has anyone used study guides, practice questions, or learning resources that helped them improve? I would appreciate any advice from students who have taken this exam.