As your buddies have mentioned, it largely depends on the genetics and the environment, but there are tricks, buddy. For example, 24-48 hours of total darkness before the harvest, root washing with cold water can be beneficial stress techniques that might increase your trichomes. If you're still waiting for washing and harvesting, adding some molasses and lactic acid bacteria (LAB) could also boost your trichomes if you're not in the final phase yet. Good luck!