How could I prepare for this physical test (at the end of the Summer). Details inside?

Go to work on a farm this Summer. Throw hay bales around all day and you’ll be ready for the kids. You’ll also end up with calloused hands that your s/o will hate.

Good suggestion by @Adirondackwannabe. If you can survive a summer loading hay you will have no problem with almost any physical challenge that comes your way.

Suggest you take a martial arts class or two. I would suggest something like Akido that focuses on a more passive defense combined with pressure point and joint locks to maintain control.

Take up weight lifting. If you ease into it, you’ll have no trouble whatsoever lifting, pulling or pushing 100lbs by autumn.

ya I’d start going to a local gym and start doing various squats and exercises with kettle bells to improve your lifting and carrying capacity.

And as YoBob said, think about taking up a martial art. I suggest judo or jiu jitsu!

Go work at UPS or some other box handling job.
It has been proven that people who work to load and unload have the greatest workout going.
Then just stack those troubled little youths like boxes.

Get yourself some weights!!

I am going to practice by restraining my girlfriend. Should be fun. :)