CrossFit revelation

I'd almost convinced myself to quit CrossFit. I was frustrated that i was slow and the workouts consistently had exercises I couldn't do. I blamed it on the exercises. I told myself the movements were only good for little guys. Today the WOD was perfect for me. 5 rounds of 15 calories on the bike and 15 sumo deadlift high pulls. Those are two of my strengths and I still struggled. I realized that the problem isn't what body types are best suited for CrossFit. The problem is CrossFit is hard cardio and I'm in bad shape. Quitting because the sport isn't best for a big guy like me makes sense. But quitting because I'm fat and out of shape doesn't.