<p>How well you perform depends a lot on your present capability.
I don’t remember well, but I thought that after registering it’s not refundable?
If you have paid already and are not getting it back, it’s just better to go and at least see what it’s all about.</p>
<p>Since you have already done the SAT, you’ve probably reviewed some topics that will help you in the Math section, but 15 days still won’t be enough to get used to time-constraints (if you’re not used to them now). Yet, I don’t think you should dedicate too much time to it unless you have a preference for the test, which you won’t know until you go for it.</p>
<p>My advice is to practice a lot for SAT because you’re aiming for it already and then sit for the ACT and see what it’s about. It’s not easy to advice in such things because it depends lot on the person.</p>
<p>This part of ACT’s website has many useful links, especially the last ones (there ‘free test questions’, which are identical to the real ones):
[ACT</a> Test Prep](<a href=“ACT Test Preparation | Test Prep Resources | ACT”>ACT Test Preparation | Test Prep Resources | ACT)</p>
<p>I’ll specially give you this link for the ‘content’ of each ACT part so you know what it’s about:
[ACT</a> Test Prep : Description of the ACT Test](<a href=“ACT Test Preparation | Test Prep Resources | ACT”>ACT Test Preparation | Test Prep Resources | ACT)</p>