I registered because I wanted more insight on how to study English and broaden my perspectives.
・Insight=見識
(例)
I want a little more insight on that, so I decided to research about it.
I gained a greater insight into the issue.
Can you give me a little more insight about it?
・register=登録
・ broaden my perspectives=視野を広げる事
色々な世界観を知りたいとの事なので、
broaden my perspectivesというフレーズが良いと思います。
ご参考になれば幸いです。