Hi dudes, i'm back with yet another rookie question, i've been wonderig, is there anyway I can choose where do I want to put my savefiles?
If for example I want to put my saves from season 1 in slot 1, season 2 in slot 2 and so on, not sure if i'm explaining myself but yeah, any help would be highly appreciated..

The page on which the file save is displayed in the game GUI is determined by the name of the file name.
For instance, file
301-
6-LT1.save will be displayed on page
301 in its slot number
6.
So, if you download 1-1-LT1.save but you already have the first slot of the first page occupied (i.e. in your "saves" folder you already have a file named 1-1-LT1.save), before copying the downloaded file into your "saves" folder just rename it 20-1-LT1.save and it will be displayed on page 20, slot 1.
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Of course if you have a save you made on page 5 slot 3 and you want to move it to page 10 slot 2, just go in your "saves" folder and rename it from 5-3-LT1.save to 10-2-LT1.save and next time you load page 10 it will be displayed there.
Beware that anything that you put in your local "saves" files gets transparently copied into "%appdata%\renpy\NameOfTheGame". I don't know if you rename a file if it will be simply renamed in %appdata% too or if in %appdata% you'll end up with two copies of the same file, one with the old name and one with the new name.
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Hint: .save files are actually .zip, so if you right click a .save file and select "open with 7zip" (or any program you have installed to manage .zip files) you will have direct access to the thumbnail of the screenshot taken at the moment of the save creation.