You can actually change that up all in the settings (even on a per deck basis). It takes a bit of tinkering because it's not clear from the beginning what each setting does. Typically if I get something wrong I reset it to 20% of its previous time (so if it was a month since I saw it last I'd see it in around 6 days).

I'd trust the system though. Typically once you get to the point where you won't see it for more than a year you're highly unlikely to forget the content anyway. Although it depends on what you're trying to learn. The default settings are optimised for learning Japanese.

That’s the point of using the algorithm. The recall intervals are based on Ebbinghaus’ forgetting curve. If you want to see the card sooner than one year choose <10 minutes even if you remember it perfectly.

This is why you should turn off showing time until you next see a card in preferences. Trust the algorithm.

You could set the maximum time in the deck options: e.g. set it to 1 month, and all cards will have that as the next interval if you answer them right. After you work through the cards, you can increase this maximum. There's a chance, however, that after all this time you'll have many of cards reset back to beginning.

Or, you can fire up the desktop card browser and reschedule all the cards in those decks—choose "return to the learning queue" so they pop up like new, or set some interval like, again, a month. Then you can do a “custom study” to work through the cards right away. (I haven't tried this method, though, so not sure it will work.)