Hey I'm in year 11 as well, taking Eng Lit and Lang, Maths, Additional Maths, core & additional & further additional science, History, Computing, Art and Drama.
I would say
History.. Quite easy if you can remember facts, names and reasons and the flow. can get an easy A* if you do that. Would be better if you're good at English as History is completely essay based and it will be quite hard if you aren't. ( Know this by looking at my friends)
Computing... If your good at programming, go for it, as 60% of your final grade is basically programming. At my school, about thirty-five boys take it, while there's only three girls including me, so can be annoying at times when they're loud and unfocused. A few boys in my class crashed the computer systems several times during the control assessment lol. I personally hate it, as even through I am an A*/A at the exam bit (the theory bit), I'm really bad at programming as I get frustrated and confused, which drags down my grade grrrr. If you are very logical and patient would recommend it, but if your not interested in programming and chose it because you like computers or video games and etc, it will be a pain. Still is useful so take it if interested.
Art... I would say no, unless you really enjoy it as it is a very hard working subject. This said, might be biased as I am a very slow drawer, while I hardly never procrastinate, and even then I have to stay up all night before mock exams, during art. Yep, not revising, but doing art. You have to make sure the quality and quantity is really good and the pressure is a lot. Lots of my friends, including myself regret taking it, because we took it thinking it was an easy subject to chill, don't think it is.
If your thinking about taking computing, don't take ICT because tbh its just a waste of time if your doing more harder stuff anyways in computing. My friends say they don't really learn much. I would chose Computing over ICT anytime, because the theory is more interesting.
PE sounds interesting and fun, and if your taking a lot of academic subjects, it will be a good one to chill. (I don't personally take it but my friends who are doing fully academic subjects said that, don't judge.) Would have loved to take it as I enjoy sports but chose drama instead.
One of my friends who does Art, Food tech and Textiles said she finds textiles too much work, as much of art, but isn't as enjoyable as art. She prefers Food tech the most, as it gives her useful skills and knowledge, while not being that hard. Oh, but it is quite expensive as I think you have to buy own ingredients lol.
No idea about Products and Music.