Yes absolutely.
BUT........
Trying to go straight from GCSE's to the aviation industry would be foolish. With grades like that you should not waste your talent by cutting your education short. Go to collage and get good A-levels (which should be easy for you), then get in to a good university doing a subject that you a) Enjoy and b) will allow you to have a fall back career option should flying not work out for you immediately. Once you have that safety net in place then go and chase your dreams.
As an example I chose Engineering, which gives me the the right mix of skills to both to get me in to the right hand seat ( hopefully
) and also allows me to have a fall back career that I can now pursue while applying to all the various schemes mentioned on this bit of the forum.
The one thing you have got is time. There is no need to rush in to anything, just enjoy the ride.
Just my 2p