This day was difficult because I was trying to import some assets, but I couldn't because they were in .aseprite format and Godot only supports PNG format. Luckily, I found an extension called Aseprite Wizard for Godot, so I installed it. However, that caused another problem that took me hours to solve, but eventually, I fixed it and now it works perfectly fine.

Here is the main character:

When I ran it, it looked very small. Tomorrow, I'll work on fixing its size.