I need help with armature

Hi! I’m new with 3d graphics and I decided to learn by tutorials but I have got a problem with my project. Couse when I assign armature to body half of it moves naturally and half on the other side moves without any commands. I really need help and I would be really grateful if someone would like to take a look at my project and tell me what I’m doing wrong.
Thanks!

Hi, just check if you have applied the modifiers, for example a mirror, before rigging. The don’t forget Ctrl+A to apply transformation, then you can parent it to your armature.

thank you really much!