Applying for the first time

I'm applying for the PSLF program for the first time because I recently started a job in public service. Maybe this is a dumb question, but the application asked me for my AGI as it appears on my tax return. Obviously, 2024 tax returns aren't done yet, but I didn't start my new job until this year. My income in 2023 was much lower, but I guess that's where yearly certification comes in? I'm just really nervous to miss something in this application process and get denied down the road.