I brought this display. I've read a few reviews, most are positive, but some say it doesnt work with the pwnagotchi. Can anyone tell me how to enable this display?

I am currently trying to learn cyber security, specifically pentesting. I also do blue team things now and then, but not too often. I've started about 2 years ago with programming in python, later golang. I feel like I am decent in both. However when it comes to pentesting and security in general. It doesn't feel like I'm doing progress whatsoever. I know about theoretical Linux, networking, programming and that stuff, but when it comes to the hands on tasks, I fail miserably. I know know how HTTP works, but can't do easy Hack the Box CTFs without a complete writeup (not just little hints). I solved a few CTFs on different platforms with the help of writeups because I thought I just lacked the creative thinking part, but I don't see any progress. And when I feel like doing CTFs, I quickly loose motivation because I don't get anything done. Can anyone relate? How can I overcome this?

Is there an application for building/drawing stuff. I know blender exists, but its a little overcomplicated for what I'm thinking of.

Also where can I post such questions, regarding software? If this isn't the right place, tell me where I can post it.

Is there a security risk with enabling autologin when you have disk encryption with LUKS enabled? If anyone gets hold of the PC, they have to enter the password needed for decrypting the disk.

I'm thinking of something like vulnhub, but for docker images. I know about the official docker hub but on there I have to search to may find 1 or 2 from 6 years ago.