Looking for some help.

In the last two days, Google photos has restored every single photo on my GP to my gallery on my android phone. When I delete from my gallery, it's now deleting from my GP too automatically. I don't want to turn off sync, as I want any new photos synced onto GP, I just want to go back to how it was.

Any idea how to fix this? I can't find a solution online.

So, tonigth I got an alert saying that I had almost no space left on my Google account or something like that. Of course, since the synchronisation is activated I thought that I would simply delete every pics and videos from my "cloud" and keep everything on my phone. Long story short I didn't found how to do so but I saw a message saying that I could free a good chunk of storage by doing something (I really don't remember sorry).

So I do this and all my freaking photos and videos are missing on my phone and are on my Google photo account. I still have very little storage left and so I wanted to redownload everything and even older pictures/videos since my phone have more than enough storage.

I've looked everywhere and tried everything I could but it seems like I can only download 1 pic a time. I can't select everything or only by doing it month by month and if I select more than 1 picture the option to download disappear.

I'm very angry right now and so upset so I'm sorry if I'm not to understandable (I'm not English too so it doesn't help) but if anyone have an answer or a solution I'll be glad to hear it thank you in advance.