Newbie and can't figure out the "What can I tow" math

It usually comes down to how much your TV can carry, not how much it can pull.

My F-150 has a max cargo of 1400 lbs. With 700 lbs of tongue weight, two adults, our dog and gear max it out.

As suggested load up the family and truck gear and hit the scales.

Also, we rented our first TT to see what towing was all about, before we spent the big bucks.

Good luck