[goldy]

Could I still join if I just did the relaxing and visualization aspect on my own, the way it's described in the article? Hypnosis freaks me out (that's why I prefer the idea of binaural beats and the rockmelon ringtone), so I don't want to listen to the video. I was planning on starting visualization at night as I lay in bed anyway starting April 1st.

Am I still good to join?

Why would hypnosis freak you out? The word blessed in your username makes me wonder if you're religious.
It is not weakening mind control opening you up to evil spirits, as many Christians think. This type of clinical hypnosis with positive intent, is just very deep relaxation with visualization and spoken suggestions to the subconscious mind. Meditation is deep relaxation also. Many modern religious leaders advocate it and say deep prayer is a similar state. There are actually practicing Catholic hypnotherapists.
When in the hypnotic state you're still conscious and know what is going on, except if you fall asleep.