For practice with unit circle trigonometry, try the PHET at:
Also, try Khan Academy (search for “unit circle” and choose the video) at:
https://paradigms.oregonstate.eduhttps://www.khanacademy.org/
Also, try the unit circle simulation in the middle of the page at:
https://paradigms.oregonstate.eduhttps://www.mathsisfun.com/sine-cosine-tangent.html
There is nothing specific to answer here. Play with the simulations and watch the video until you are comfortable with your understanding of the unit circle.