Presidential Volunteer Service Award Questions

I’m 15 years old and I will be turning 16 in November. I volunteer at a local library to teach and I have over 200+ hours from the past 3 years. I think I may also have 100+ from this year.
I do not think my library is a certifying organization.
So here are my questions

  1. Can hours carry over from past years?
  2. Can I ask if my high school can represent me even though I volunteered at the library? I think they might be a certified organization because some people from my school did get a pvsa award at school…
  3. I am turning 16 in November and If I want to get the gold award do I have to get it before then?
  4. Also would my previous hours still count if I told my high school in September. For example, if I told them in September would the period start then? Meaning that only hours logged from September onward count?

I know there are other posts on college confidential but some did not receive replies and I am still confused. I would really like to be recognized for my hours and I would appreciate it if someone could help! Thanks