Gym, machines, etc. of course they are useful, but in the absence of them, now that the gyms are closed, a couple of dumbbells and some weight are enough and you can train like the pro.

PS
why wasn't I born with a physique like his ???????

Will you build a physique like a pro? No.
Can you do a hell of a lot better than doing nothing? You bet.

Write out a workout consisting of:
Pushups
Squats
Pullups if possible
Dumbbells do: Lunges, squats, rows, biceps, triceps, etc.

Write it down and make each workout slightly harder over a 4-5 week period.
You will do great until gyms open back up.