ItsJustTroll wrote:
And I am suspicious about that my progress is not submitted to my official page
If you played ranked maps and you saw your score in the ranking on the left after existing results screen, your progress is saved. You can also see it on your profile page.
ItsJustTroll wrote:
How can I get back my beatmaps and skins without being a supporter?
You wouldn't be able to even with supporter, and will have to redownload the stuff regardless. If you don't remember what beatmaps you had, there are some listed on your profile as top plays, recent activity, and "Most Played Beatmaps" section, and you can also look at the maps you favorited if any.