Hi "sociallyawkward,"
This is my first time applying as well but I had a lot of help from both a graduate student at my current institution and from my honors senior thesis advisor. The best advice I can give is to get a ton of research experience and try to do an independent project or lab manage if you can. Also, to narrow down your application try to discover a specific area of interest to hone in on.
Best of luck with your other applications.