Struggling with breaking a plateau.

I (21m) am struggling with a plateau. I'm 300lbs currently from an original 315. I was always the fat kid and am tired of it so I started my journey, I've done a ton of research and decided on a plan that I like which I've been committed to for a couple months now.

Anyways background aside I intermittent fasting from 10PM to 12PM and drink a ton of water and electrolytes all day. I've been stuck at 300 for a couple weeks now and am wondering how to break it. Should I take away more calories or maybe sit at maintenance for a week to readjust my metabolism? I want to start doing cardio and working out too so maybe that will help. Any suggestions?