Interested in creating Minecraft mods/addons/texture packs?

If so, you need to know about "Blockbench" first. This app is a 3D modeling program, suitable for creating models with a low polygon count. It's very easy to use, and you can start creating right away after watching a few simple tutorial videos on YouTube. It allows you to export models in formats compatible with Minecraft Java/Bedrock Edition, which is a great help for mod/addon creation. Of course, "easy to handle" and "producing high-quality results" are different matters... Just like anyone can draw a line with a pencil, but not everyone can create a drawing that evokes admiration.