I’m poor (income is ~20% below US poverty line) and only vaguely understand how things work and speak one language. So I have no money, wouldn’t trust my advice to fix things or explain them and translations can be done better with other resources than me. I did try to make wallpapers and icons for a few things but they weren’t professional looking enough to share. As I learn more I hope to contribute more in any way I can, if I’m confident it will help, but for now the best thing for me is to stay out of the way.
There are many ways of contributing to Free Software with your efforts. That you are seriously considering it is already very much appreciated. Maybe you should think about signing up to one of KDE’s mentorship programs (excuse the bare bones website, it is still work in progress)? These would help you get the foot in the door of contributing with someone to guide you, and even a foot in the door of the IT industry.