Players drop out after first stage in my game

How can I make the game smoother for players after purchasing their first set of items?

The tutorial is being revamped (it currently has a 20% churn rate, which isn’t the best it could be), but the main game loses 98.66% of players by the end of the game, with the majority leaving the game before building a PC with the Ceres GPU, and before building with the Pulsar GPU. If those two steep drops were not nearly as bad, the game would have 27% of players reaching the end, which would be amazing for play time, retention and revenue, so how can I improve this?

seriously im more interested whats that system

The GameAnalytics SDK, which you can integrate into your game

appreciate, im not sure what can i help with, i will try my best