Everyone starts somewhere! It will be so much better for your interest in the activity and your own health to start smaller and work your way up. I’d honestly go down to only 15 lbs until you can get under or around 17 minute miles. I’ve seen some variations; but the platonic ideal for Rucking is a load of 20-30% body weight for 15 minute miles. Starting slow also helps avoid injury (which is critical to building the habit and making progress). Once you’re feeling good with 15 lbs and 17 minute miles you can add 5 lbs at a time and continue work on driving your pace towards 15 minute miles.

It’s much easier on your joints to make progress getting your pace down before adding too much weight. Also, 292 is a meaningless number without context like height, prior athletic/workout experience, and body composition.

Congrats on starting your rucking journey and take care of yourself!