Although I have already reached beyond the 'o' level, I'm giving
you my opinion based on being in the industry
I think this option is good as electrical did not go thru too
many changes in so many years and thus remain pratical. You may do
so and work hard to go to your choice on the 2nd year. However if
you are unsuccessful, electrical engineering remain a good option.
Aeronatucial is a very specialise subject therefore you could be
limiting your options in the future but I would still encourage you
to seek your desire.
Engineering being a hands on subject therefore you will have to
work very hard especially if you do not have "A" maths or are weak
in the mathematical subject. So work hard to fullfil your dream