Two thingsEdit
Hi, first you need to preview your edits before saving them, repeatedly saving and then reviewing your edit floods the recent changes and the page's history with excessive minor edits that could have been done in a single edit or two, while also making it more cumbersome for other users to review your edits.
Second, this is not how you replace an image, you need to upload images over the old image on the old image's file page. Since your account isn't autoconfirmed and thus you lack the permissions to upload images, you must instead ask another user to upload the image for you, make a note of the desired image update on the article's talk page, or get yourself autoconfirmed and then upload the image. Omega Tyrant 
12:05, March 17, 2024 (EDT)