1. Open the game "NBA 2K23" and select "Glorious Career" mode.
2. Click "Block" to enter the block diagram.
3. Find the "cabin entrance" in the block and enter the cabin.
In the cabin, turn left and find the gym.
In the gym, you can exercise, improve your attributes, unlock new skills, and change your body shape, skin color and clothes. I hope this can help you!