May I get some advice? Help me plssss

I’m a newbie to Blender, but I’m having so much fun with it. Unfortunately, there’s something wrong with my mixamo character, and when I imported to Blender it didn’t have any animation, it’s always on T-posing. I’m still an amateur so I couldn’t have enough experience to tackle it. Plsss help me guys :((((((

Is your armature in Object, or Pose Mode:

Object mode, you can’t pose it Pose Mode you can, post an image of your full Blender window for a start, we can then help you better. I may also ask for the blend file at some point, you will have to post it somewhere else, being a new user, I will tell you where, if it comes to that.

Welcome to BA!

Cheers, Clock.