Hi. Your high BP could be due to anxiety. If the high values are also associated with high pulse rate mostly must be secondary to anxiety. However before that just get yourself evaluated completely to rule out other secondary causes of high BP which can mimic anxiety attacks.
If a young person is found to have high BP for the first time evaluation is warranted first, to confirm that there is indeed true hypertension and second, whether any other disease is manifesting as high BP
Next Steps
Seek consultation for proper evaluation
If all tests are normal you could consider consulting your psychiatrist for optimisation of anxiety medications