Anyone knows how to put a プロフィール picture on my account??? Please answer for those who know how. Arigatou Gozaimasu..

First あなた need to go to your own 写真 page/gallery.
So go to your プロフィール and click 写真 or...
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Once there あなた should see something that says "Upload new photo"; click it and あなた will be on a page which will allow あなた to アップロード a photo.

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If あなた want to set it as your user icon, click the box または return to your gallery and set it there.