If you want to lose weight but don't like exercise you need to limit consumption of sugar, eat more vegetables and drink plenty of water every day.

Gym with proper diet will make you gain weight but not fat.

If you want to learn Photoshop the most basic thing is to have Photoshop software. You can also download some textbooks, ebooks teach Photoshop about learn about it, maybe look at the interface of Photoshop will make you pretty stunned because it's a bit more functional. So you need to refer to the tutorial on the basic functions of Photoshop for easy manipulation.

I guess in the future, people can live on the moon.