Download a Photoshop software.

2

You can use other software, such as: Light and Shadow Magician, Meitu Xiu Xiu.

wait for

But the function is not as powerful as ps.

Single function, and if you buy a digital SLR,

You may bring your own image processing software (but you can only deal with exposure, color, contrast and other issues), and you can't make major changes to the image.

three

Find a part-time person to help you ps (it costs money)

It would be best if someone knew this.

four

Someone offered to help you for free.

five

If none of the above methods are feasible for you, it's just like you want to cook noodles but there is no water.

I can't help it ~

Hmm. How interesting

Just kidding ~ ~