David you may be fifteen but not caring is not the ideal way to start an aviation career.
You are obviously feeling as if people on this site are 'having a dig at you' but you really should take their constructive criticism and use it to your advantage. As stated and stated during this post care over your basic English can be a huge part of flying, the safety of your aircraft and the people in it, so just think about what you are being told and stop getting so defensive.
No one is putting you down, no one is telling you that you can't do it but are only trying to open your eyes to the real aviation world.
Aviation has been my dream since I was 6 and now I am about to start my CPL over in the states. I have taking criticism in the past but I used it to get to the point I am at now, six months from starting a job (hopefully!!).
These are just my passing thoughts, do what you will with them, it really doesn't bother me but I do wish you the best for the future
Cloud surfer