Hello there Gertrude :)

It's nice to hear from you.

Yes, I have studied psychology and still do! One never really stops studying it. Or, is this an excuse I use to cover up my addiction :P? I am much older than you, I am 37 and I have had a long loving relationship with psychiatry/psychology and I do recommend it as a path to take in life. It's very rewarding.

As for the 7 window-upvote, here on this platform. One's upvote only increases the value of a post within a seven-day period after the article is posted. After that there is no more increase in value :) As you explore Steemit you will learn little by little the ways of the platform and the community itself.

Best wishes,
Abigail