What does your son actually want to do? Does he even know what he wants to do, or is he going to end up being very good at jumping through ever higher hoops without ever really having any idea of why he is doing it? The risk you run with this kind of programme is that you produce a child who responds to external motivation, but has little internal motivation or self-direction, and potentially quite high anxiety levels.
I think there is a case to be made for insisting that children complete a full term or year of an activity they wanted to start, so that they get used to the notion that you don't ditch an activity on the first wet Saturday in November when you'd rather stay in bed than play rugby or whatever. Ditto practising an instrument - if my dc want to have music lessons, then they need to put in 30 mins a day practising the instrument, otherwise they're wasting their time and the teacher's time, and my money.
There's also a case to be made for insisting that a child does at least one activity a week that involves significant physical exertion of some kind. For some children that will be a competitive sport like basketball or tennis, but other children might be much happier doing something like kayaking or climbing.
But that's a world away from setting your child up with an exhausting portfolio of external activities because of some kind of fear that he will be missing out or get left behind in the race of life. You sound as if you've picked these activities because you think they're important, not because they actually reflect your son's abilities or interests. Tbh I think your child is doing a completely excessive number and range of externally-directed activities, adn even if the child himself was begging to do all of this (which it doesn't sounds as if he is) I would still think it was too much. Children need a lot of downtime, not necessarily screen time, but time to think, play, dream, and just be, to work out who they are and what they want.
As it happens, I have ended up with a teenagers who have devoted what sometimes seemed to me like disproportionate amounts of time and energy to their chosen pursuits (sport for one, music for another), and spent pretty much all their waking non-school hours on that activity, and ended up being pretty successful at what they did. But in both cases they were doing that because it was something they had chosen for themselves, not something we imposed on them, and I don't think they would have attained those levels of commitment and achievement if they'd been doing it to please us. Along the way I have encountered a lot of slightly deranged sport and music parents who want success for their child much more than the child wants it for themselves. Without exception not only do those parents not get what they want, but they end up with noticeably problematic relationships with their teenagers, who struggle to extricate themselves from under the weight of parental expectations.
I think you need to seriously chill out, and have a long hard think about whose needs are actually being met by this programme - your child's needs to do all these activities, or your need to have a high-performing, succesful child.