My account is missing

Good evening, I have been on MS for several years and I have quite a few scores, some of which "worked" very well, with a lot of views and comments. Several weeks ago, my PC was "slowing" and I ran my antiviruses, CCleaner and others. As is often the case, my passwords have disappeared, and at the first connection on MS, no Log in, and when I try to reconnect, instead of offering me to go through FaceBook, it launches me on .... .Google I think. When I ask for a new password again, my email address on GMX is unknown, it gives me a GMAIL address that I never use......in short, impossible, after lots of tries, to enter my old account which was in the name of "Raymond Wicquart".
I recreated a new account with the name "raymondwicqua" (I did not choose) and my new account is empty, I have not added any new score.
If I use the forum search window, the top window to search for scores, and I type "Raymond Wicquart", I find myself on my 1st account, with all my scores, but without really being able to go into it, anymore notifications, more “views”, more comments.
If someone has an idea........