what have I done! I am new to biking... but just purchased a road bike frame and a fork. I don't even know what other parts I need. What am I to do?

Hello to all of you!

I am 5"7, 150 lbs. I just bought a 54cm frame and fork.

- what speed should I make this bike? (I will be a weekend rider)
- what size wheels do I need
- what type of brakes do I need?

As I stated, I will be a weekend rider (10 mile rides). I am on a strict budget. I bought used frame and fork for 200 dollars (Orbea Starship aluminum frame with Reynolds Ouzo pro carbon forks. If I am in a wrong forum, please direct me to the right place. I would really appreciate any help you can give.