going to give two approaches. A skeptical one and my personal mystical approach
The skeptical: Often times, we are not shuffling to randomize, we are shuffling until it feels right. The problem is that if we end early that leaves clumps and patches where cards keep appearing in the same patterns over and over when we are looking for new meaning. Do some research into how pro-tcg players shuffle to try and perfectly randomize. try doing alot of shuffling in multiple different ways to force chaos back into the deck, allowing new messages to enter.
My personal approach: The tarot deck is a creature, a animal, that we have domesticated for use in magic. Tarot decks, when in their natural habitat, usually spend their active hours exclusively on games played in circles. Often, when a tarot deck is seemingly failing, it is because it is not properly enriched. Doing reading after reading with the same deck may work, but it will have the tarot deck burn out, and stop enjoying anything. In other words, play some damn card games with it!
Think about it like this. What if some being 10 times our spiritual weight and 20 times your physical size spread you out in a big circle and made a big stink about how you where going to answer its questions like you were a expert on the universal cosmos.
Invite your friends over for a couple rounds of Tarot(its a trick taking game, like spades but the major arcana are the spades). If you don't have friends,
I personally played a version of ERS (its like complicated slapjack) where the first person to play a major Arcana card got to declare the effect that major Arcana card had for that game.
that might prove suitable. Your going to need to find something that both you, any of your conscripted friends,
And the deck of cards iself actually enjoys. Id actually suggest trying to keep any/all mysticism out of this choice, as soon as you find a numeralogical significance to the game it stops being play for the tarot deck and the preassues back on.
Some times a deck of cards doesn't know, or can't physically, play games. They have been raised so hard that they have lost their instincts, or perhaps bred to be beautiful at the cost of their health, like pugs. If your deck is struggling to play you might need to try and build a rapport with it first, use it for help with small descisions, do readings on fictional characters, maybe even ask it silly and nonsensical questions! The goal is to make the act of reading less stressfull, and to make the deck trust you.
Make sure to take proper care for your tarot deck! It seems that its stuck on some concepts and may need to be introduced to more people. New concepts, and given some time to just relax. Its sticking to a few reliable answers that were true before because it's to exhausted to figure out what to do next. So, host a meetup, play some tarot, have some snacks that wont stain the cards, and see if it can give you something more!
And if that fails, and you get those cards again. I frankly don't know what that means. Maybe Remove those cards from the deck, and for each one, ask the tarot what it means when it answers with that card? That could lead to problems because like, its hard to know if the tarot is reffering to a specific message or just a general understanding of what those cards are. Because there might be a specific real life hermit you have to look out for but the high preistess is entirely metaphorical. That level is beyond me.
(To the observant, you may have noticed, that the mystical solution happens to involve a serious of actions that will incidentally cause the skeptical solution. Playing games will beak the clumps made by improper shuffling and readings. Playing games lead to the deck being shuffled more often in between readings. This is intentional. I often found that rituals of puitication that relied on a element, or spirit, or concept, would make new readings worse and wring in new and intesting ways. Perhaps confirmation bias, perhaps taint to the energy, didn't know which one so I needed to solve both. So, the cards get shuffled, the tarot Is cleansed by going back to its roots,and I get an excuse to play games with friends! <|