Discover Awesome Features

Recently I decided to try to make my first game and chose the clicker format - it seems to be nothing complicated. But when I started to dive into the details, I realized that there were more nuances than I expected. For example, how do I make sure that the player doesn't get tired of the monotonous clicking? How to add progress and rewards so as not to overload the game, but also not to make it too simple? A couple weeks ago I made a test version and showed it to my friends. Everyone, of course, praised it, but said that after five minutes you lose interest. Now I'm thinking: maybe I need to add more mechanics or change the pace of the game? Has anyone encountered this at the initial stage?