Depending on how and where you took the test, you may or may not be able to trust it much. To be valid, the test should be taken under controlled conditions and scored by a trained tester. This would usually mean you took it in a classroom or in the offices of a counselor or psychologist, and they scored it themselves. If you took an online test somewhere, the results can be misleading at best. Or they could be outright lies, where they give you an inflated score, and then try to sell you something that interprets it for you.

But that is only true if you took a real IQ with a psychologist. Online IQ tests are not accurate at all! Some tests tend to overestimate your score while others tend to underestimate it. A lot of online testing sites are just trying to sell you something.