You’re alive. You would not be without qi, that’s as real as it gets. It’s what you use in yoga and in qigong, it’s what martial artists use to do more damage with less effort, such as in gongfu, or tai chi chuan, or aikido, it’s what heals you in acupuncture, which is an energy manipulation art, it’s the force in Reiki. It’s what human “vampires” and some parasite and human ghosts steal to make you feel drained. The Chinese study it at the university research level extensively.
You can feel it if you do exercises like the qi ball or cultivate qi.
It’s best to find a qigong or tai chi or yoga class near you, or you can follow youtube tutorials, and my favourite book on this subject is The Root of Chinese Qigong by Jwing Ming Yang.
If you had to study only one practice your entire life, I would stay study energy working of any kind, but particularly qigong or lifestyle yoga, it’s that important. But studying it also helps you in all areas of occult practice, because it develops your psychic senses. All magick is, is moving energy using your mind, if you can do qigong you can do magick.