You may not be able to complete the entire exercise if some of the technical issues in the exercise are not covered until later lessons. In these instances, complete as much of the exercise as you can. Come back later to finish the exercise after you cover all the technical topics.
To gain a better understanding of the tax law, complete the comprehensive problem or practice exercise(s) for your course of study in Publication 4491-W.
For practice using the tax preparation software, complete the scenarios using the Practice Lab on Link & Learn Taxes.