Not sure if you'll ever see this, but it's good that you want to improve, and for this your are entirely forgiven. The only tips I can really give you are to be

Not sure if you'll ever see this, but it's good that you want to improve, and for this your are entirely forgiven. The only tips I can really give you are to be consistent, and try and be grammatically correct. I don't care if you use e-mail or email, as long as you stick with the same term. I do care if you use lowercase "i"s when you should be using capital "I"s though. That being said, everyone can improve, so just keep learning and writing. I have just bought the above book too. Everyone has space to learn. Good job on taking my criticism positively as well, even if I did sound a bit irked.