The concept is there, but the gameplay is lacking. Because you can't move left or right, every iteration is simply hoping that you get lucky and ores spawn beneath you. This also incentivizes just using an autoclicker and not playing at all. Were you to have some more freedom of movement, the game would be much more enjoyable. Also, the initial time restriction is too short, and the time upgrade too expensive. You need to play for quite some time to get the first upgrade and it becomes quite monotonous.
I don't mean to discourage, though, so congrats on getting a game in and hope you're feeling better now.