The best thing to do if your family situation is one of a controlling nature, no privacy for even a minute is to tell them that you would like some alone time, OR, if you can't even do that, do your meditations when you take a shower/bath and go for walks, walks can be a great time to do meditations. The fact of the matter is that you should be able to find some time, there is no way your family is CONSTANTLY watching you 24/7, or that they have cameras all around the house and shit. If you need to, pretend to go to sleep and then meditate but just do it with your eyes closed. You could do it like this.
Morning - Shower/bath meditations
Night - Fake sleeping meditations
The above two are something you should be able to easily do. Vibration is best for energy work, however, you can do everything purely with visualization if there is ABSOLUTELY no other option. You don't need to move your hands, or feet, or anything, simply laying down or sitting still you can do almost every meditation, breathing exercise, and ritual, there are some things which require physical movement, such as certain meditation/breathing exercising needing a straight spine and yoga needing physical movement. If you need to, you can even do the dedication in your astral temple.
I hope my information was helpful to you. You can find information about the astral temple on the JoS website