7:02 PM, Sunday March 29th 2020
Pledging for 1 month on Patreon at the $5 tier gets you 1 credit, and allows you to store up to 2 credits. The higher tiers get you more credits and let you store more for longer, and the Patreon has things listed out in terms of what tier you should pledge to based on your pace and level.
Lesson 1, the 250 box challenge, Lesson 2, the 250 cylinder challenge, and 25 wheel challenge are all 1 credit a piece. Lessons 3-7, 25 texture challenge, and 100 treasure chest challenge are all 2 credits a piece.
Since there's a bit of a backlog, the 1 official critique per 14 days limit is more important than ever, and you'll have to wait for a third month's pledge to go through anyway before you'll be able to submit this for official critique.