Can anyone help me get started into the scuba community?

I am about to sign up at a PADI certified diving place, to learn to scuba dive. I am 14 years old and I need to know that I can become completely open water certified. I would also appreciate anyone that could give me a few websites that I can buy gear from. I would like to purchase all of my own gear, wetsuit, tank, bc, regulators, mask, snorkel, everything. I live in Ohio near Lake Erie and have gone to lake Huron to visit family. I believe both are clified as temperate waters. Any tips possible would be greatly appreciated.