You have enough idea about electronics. You repaired your fridge. He fixed it. Even if you did not learn from any kind of video, it is a very good thing that you learned yourself. The most important thing is to practice as much as you can.

Besides, I could see that you have learned various works of Steemit. You have learned several things in posted, arranged writing and online, which you have presented beautifully in your post.

*Good luck to you always. At the last stage, I say one thing, that you did not use #steemexclusive tag in your post. *