Anxiety for a test stems from two issues mainly:
- You don’t know the subject matter well and you feel it’s too hard for you.
- You can’t handle the stress of time on the test
The good news is that you can work on anxiety.
For the first part, all you have to do is force yourself to sit down everyday and study the material. There are plenty of amazing resources out there like Khan Academy that will actually teach you the material. Start with the basic stuff and once you get comfortable with that, move onto the harder stuff. Practice is key. The more you practice, the better you will get.
For time management, do timed practice tests or sets of questions. In the beginning, don’t stop when the allotted time runs out; work on accuracy rather than speed. Gradually, as you start getting better with the questions, start trying to do them quicker. After you’re comfortable with that, start trying to finish within the allotted time.
Eventually, if you keep working at it like this, you will see that your anxiety will come down to a more manageable level. Anxiety only gets worse the more you avoid things, so stop avoiding it and start practicing everyday. Also, remember to not overdo it and burn yourself out - in the beginning study a little bit at a time and do more once you get better. If you can, try working with a family member or friend to motivate yourself.
If you feel you still need a tutor, get yourself a good tutor who can help you not only with the subject matter, but also with test anxiety.
Goodluck!