I was diagnosed with ADHD inattentive and i started Vyvanse today.. I have some questions

So some background. I am 13, 5'6 and 195 lbs. taking 30mg I also have dysgraphia

So I started vyvanse today and I feel that it helped with my attention, I didn't eat lunch because I just didn't feel hungry.

I felt very mellow, somewhat like that feeling when you plop down on the couch after a stressful day.

My questions are:

1. Will i notice any difference in the next couple of days?

2. Are there any extreme personality changes likely to occur?

3. Instead of feeling so shallow, like a good shallow when I get used to it will I feel like shit when I come down from it?

4. Any advice for paying attention to the teacher, not friends? I was somewhat having this problem throughout the day.

5. No more, have a good day =)

Edit: fixed the layout