Let's try this again. I started a response to Heidi's question but the cursor kept disappearing. Stupid new Microsoft Edge web browser.
So to curb my shopping, I've done a self imposed challenge where I had to post 50 new card projects on my blog before I was allowed to buy any more craft supplies. The only exception being if I actually ran out of something like adhesive. The benefit of this method is that it serves as an incentive to get crafting and use the stuff you have.
I also just avoid going online and looking as stamps, especially new releases. If I don't see it, I won't want it.
Sorry, Cindi, I've never taken an online class, so I can't help you there.