Sat Nam! (literally "Truth Name"--a Sikh greeting)
If you're over 25 (which I assume you are), then it's memoir.
If you're planning on publishing this and especially if you plan to hunt for an agent, I would reconsider that prologue. The memoir appears to be about you; a prologue of the type you describe sounds like backstory or worse yet, an info dump. Most writers suggest scattering that information throughout the text or leaving it out if it's not necessary. If you don't plan to publish and it's just for family, then leave it in.
Blessings,
Siri Kirpal