This is the layout of my hard drives.

Do you think I can update version 7 to 8 without problems? Or do you think that the process will remain half complete due to lack of free space on hard drives?
I know many will think that a fresh, clean installation would be better. But this has the drawbacks that I spent a lot of time configuring my Mageia 7 to make it visually my liking, and with a clean installation I would have to repeat this whole process for which I don't have time. I also have my doubts that for this new installation there would also be enough disk space.
I also know that it would be better to buy a new hard drive with higher capacity, but right now I can't because of the economic situation.