If you want to do it alone, shaping your body, do you think you can do it right by yourself, with only relying on the internet for instructions? Like for example, the pushups, do you think if you are doing it, you are doing it right? I think it's important that we consult someone who does know the movements that we are doing how to do them properly like a professional coach or instructor. Because when we are doing it wrong, we are just putting ourselves at risk, like to injuries. Also, if we are doing them right, then we are able to maximize the benefits that they offer, only if we are doing them right, but what if we don't? So, I think it's necessary that there's someone we could consult to.