Tutorials/Help in Blender

HELP-A MEEEEEEEEEEEEEEEEEEEEEE i need tutorials for-ha ill just use youtube

Yo, I need help on Applying textures to specific parts of an object (eyes, pupil, etc.) just general tutorials on how to apply textures to models. If anyone knows how to help me, reply if u want! Thx <3

How I can save a animation on Blender?
Because I try it and it always is going .png ;-;

When I open my Blender it stopped responding immediately, and for no reason, what I can do?

How can I add shaders to animatronic models?

I want to add this dirty costume effect in the model like the one in this render,how can I do that?(I'm using blender 2.79)

My Blender is closing without reason, why this is happening?

So, when I open my Blender, it stops responding immediately!

Is my computer problem or the program problem?

P.s: It's on version 2.91.2

Someone know the name of the Soda Cup texture?

Hmm blender dont open help??