When should one start translating?

[qbi]

At the moment I follow the recommendations (Basics 1 -> Basics 2 -> and so on). I thought that at some point it is recommended that I should start to translate. Will that happen at some point? Or should I better translate when I think it is OK?

[Alonzo]

ASAP.
Once you finish Basics 1 - go right ahead and translate the corresponding articles in that section.
Same for Basics 2. and the rest of them...
If you get stuck, then it's time to continue education.
Enjoy.

[wataya]

The difficulty of the sentences that are presented to you for translation are adjusted to your current level or a little bit above. So, once you have the basics clear, it should be fine to start translating.