Please give me a “virtual reality therapy” scenario..?

We’re learning about therapies in psych class, and i don’t understand this therapy..it says in the text it’s used for too expensive, difficult or embarrassing situations to re-create.. and there is an example in the book, of someone who is afraid to fly…but i need other scenarios
Thanks

Is my grammar correct in this writing? Am I writing in the right tense? Thank you!!!!!?

I am thrilled to have the opportunity to introduce myself through this letter. I am equally as excited to be participating in this course due to the fact that I love writing and want to continue learning more about it.

One thing that I have learned over my seventeen years is that from every experience that life throws at you, whether positive or negative, you have to come out of it stronger and wiser. I was able to gain this knowledge and wisdom through my interesting high school experience. The average student enters high school and four years later, they are done. This was quite the opposite of what I went through. This is my twelfth year in school and I spent the majority of my time in and out of school. When I frst entered grade nine, I was extremely nervous which I realized were normal feelings that everyone was going through. As the year went by, I began to get in the swing of things and was excited about my high school career. However, I soon began to feel extremely ill in all of my classes. I would feel as if I was going to run out of oxygen, pass out and die. I was really scared because I didn’t know what was going on with my body. I began to miss a lot of school and consequently began to fail all of my classes. At the end of grade nine, as all of my friends came out on the honour roll, I came out with three credits. I was left with an unknown illness and five failed credits. I decided to finally find out some information about what was happening to me and was surprised to learn that I was facing an anxiety disorder and what was happening to me in my classes were panic attacks. That summer of grade nine, was one of the worst experiences of my life. At one point, I was not able to leave my house because I felt like I was going to die. When it got so far, my mom and I decided that it was time for me to get professional help. I went in to ******** Hospital in ******* to meet with a psychiatrist, which put me in CBT (cognitive behavioral therapy). My experience with therapy was quite positive and I came out much stronger. I was still not ready to go back to school though so we decided that I would try virtual schooling for a semester. During this time, I also had a lot going on in my personal life. We were moving from ******* to ****** because my parents had recently bought their own business. This was a very tough transition for me but when semester two rolled around, I decided to enroll in a local high school in ******. One of the best decisions that I made was to go into that high school for a semester because I met some very helpful people. I began to relapse with panic attacks and they decided to put me in a home schooling program. I entered my grade eleven year with eight credits and had a plan to go back to CBT while doing online credits and independent learning credits (ILC). I finally had a plan that would allow me to catch up and reach my goals. My grade eleven year was extremely successful. I completed four online courses and eight ILC courses which brings me to where I am now with twenty credits (only four behind). My goal is to apply to university this year and to begin living my life, I feel as if I am finally strong enough to go back into a school. I decided to share my high school experience in this letter because I feel as if it shows a lot about my character and who I am. I believe that I am hard-working, self-disciplined, perseverant and strong. I am happy for everything that I went through because it has helped me realize who I am and what I want in life from a very young age.