I bet you think that the loss of one hand would be catastrophic. Imagine all the stuff you do with both of your hands! Lots of those things would be really hard.
But humans are adaptable. After all, if you had three hands life would be so much easier. Two isn’t necessarily the ideal number. But you figured it out!
All this is to say – your circumstances will change. Sometimes gradually, sometimes rapidly. But you’ll always adapt, one way or another. Keep your chin up.