You can only gain points if you create slim pots. The points are gained as followed, assuming no fail in between. However, If you do fail in between, then you'll have to restart back at 1. Say you sucessfully create 6 slim pot in a row, and failed at 7th, then you would only gain 1 alchemist point.
1st success
2nd success
3rd success
4th success ----You gained 1 alchemist point-----
5th success
6th success
7th success ----You gained 10 alchemist points----
8th success
9th success
10th success ---You gained 10 alchemist points----