What a delightful and fun topic to read. We all have something to be proud of. For me, I'm very proud of being quick to learn, quick to understand, curious, and easily enthusiastic.
These traits of mine come in handy while pursuing my PhD in aerospace engineering, but that is just my main job. I can extend these qualities to other fields, where I help other PhD students with their work in biology or statistics. The ability to read something and apply it to solve the relevant problems, is just super handy.
Now I happen to be very curious and easily enthusiastic about learning new things. I took up the challenge of learning and working with electronics, because I could not bear the thought of not understanding this oh-so-important field of engineering. I built myself a Super Game Pi, a gaming console with a raspberry Pi. On this machine, I created a thread on this forum, which I will update soon. Because I built one, I am now feeling comfortable enough to built a second, much better one with innovative design features to make it sturdier, more reliable, and more widely applicable.
Now I love trying new things, so I know how to sew, engrave wood by wood charring, maintain a car, build and repair furniture, play piano and guitar, fly gliders, stuff like that. Because there is always more to learn, I will always find something to enthusiastically pursue and it is fun to live this way.