I am trying to assess my current level of proficiency in Java and backend development. I want to understand what knowledge and skills are required to meet the criteria for different stages such as beginner, intermediate, and advanced. Additionally, I am seeking a reliable method to self-evaluate my progress and pinpoint areas for improvement.

I have taken several online tests and quizzes related to Java and backend development. While these have given me some insights, I still lack a comprehensive understanding of where I stand overall. My expectation is to find structured guidance or resources that can help me accurately assess my skill level and outline the next steps for progression.