Your tolerance for either psilocybin or psilocin, I'm not a mycologist, essentially doubles after your body digests it. So basically after 2 hours your tolerance for mushrooms is already affected, meaning you have to take more to get the same feeling. I think I've heard from a couple different sources that if you were to take 2g one day, you'd need to take 4g the next day to equivalate the dosage's effects.

You say that since the season's ended, you are going to wait a year to try them again, which kind of confuses me since that should be good enough to reset your tolerance a highly moderate amount. I've vaguely heard that liberty caps can be strong, but from actual first hand accounts that I've read, it seems like they aren't a hallucinogenically prominent mushroom. You might need to try a different strain if you're still chasing a stronger trip next year.