Should I wait?

I am looking into wildland fire. Problem is, I'm not prepared for the pack test. I've always been a bigger guy (currently 235, 5'5", but losing about 1-2 lbs a week consistently for the past month or so), but what I would describe as "strong fat' (I bench my bodyweight and squat and deadlift 1.5x my bodyweight. I also run about a 12 minute mile (yeah I know super impressive, right? But not every guy my size can do that to be fair)). All that said,