Please help me to express this more elegantly
四十年前に 日本語 を べんきょうしました。語学区をそつぎょうしてから 日本え行った、日本語を話したことがありません。それからわすれました。
In case this is so badly constructed as to be incomprehensible, what I am trying to say is:
Forty years ago I studied Japanese. However, after graduating from language school I never went to Japan, nor had the opportunity to speak Japanese, so as a result have forgotten it.
(All of the above is true, and I only started learning again last month, so please forgive me if I have mangled this).
thanks