12:30 AM, Sunday May 15th 2022
No problem.
If you were to start any of the challenges it would be the texture challenge and I recommend you tackle it slowly while doing other lesson work, maybe a texture a week.
The cylinder challenge is for after you've completed lesson 5 and before lesson 6. The wheel challenge is between lesson 6 and 7. As for the chest challenge it's for after you've completed lesson 7 as it's a design challenge.
I of course can't stop you from trying them but we highly recommend not doing them just yet. Lesson 1, the box challenge and lesson 2 are introductions to tools you'll be using and lesson 3 is when you begin to use them with more intent. Tackling additional challenges right now just risks burn out.
Another thing to keep in mind is that if you do try them they wouldn't qualify for submission seeing as how you're meant to submit work to the best of your current abilities and by the time you get to those challenges you should be much better at them after tackling the upcoming lessons.
Hope that clears things up, if not feel free to for more clarification.