Would one say a bracha on passing a test that they have failed numerous times, and which gives a strong sense of joy?
If it also benefits one’s family would that change the bracha?
Although you have a lot of joy at hearing that you passed the test, however the bracha of hatov v’hameitiv is reserved for good news that are usually more significant. Nevertheless you should still show your appreciation to H-shem and say perek 100 in tehillim ( Mizmor L’todah), or say the perakim of hallel. The good news should not go unrecognized, however it doesn’t warrant a bracha.
R’ Y. Cahen shlit”a