For the 7: Get STC materials, read through the chapters and do the problems at the the end of the segments. Then hit up the tests Q&A style until about test 6-8. Leave at least 4 tests that you haven’t seen before. Go back through the Q&A and tests and do closed book. Review where you are weak. Now hit up the last 4 tests you haven’t seen before strictly on a closed book basis. See where you stand from there. Lastly, make sure you do the supplementals. These are generally harder than the real thing, but are still good. Finally, just make sure to revisit the texts to see where you are missing a few things and what not. The tests will be your main study source, but they are not full proof. You still need to put in the work.
For the 63: use the same strategy. Leave a couple tests that you didn’t do on a Q&A basis. Also, if stuck, it helps to pick the most conservative answer choice.