Learning cad drawing

First time I saw the cad drawings of my brother, I was amazed with it. I thought those things were hard to make. Until I’ve tried it myself and it’s kind of okay depending on the software that is being used. Anyway, I want to learn more on it and hopefully I will make use of my knowledge when the right time will come that I will apply for some possible work in the future. Hopefully, I can improve my skills and broaden my knowledge with computer aided design.