@Jordan Penor - Good for you for wanting to get started at 19. Real estate wasn't even on my radar at that age. I'm just starting to learn about it now at age 44. I think your loan was probably very close to being approved. You should try again with a different bank. My husband and I just got approved for a conventional loan for our primary residence even though we had a short sale in our credit history that had not quite fallen off of our credit report yet. With a letter of explanation to the bank, we got them to over-look it. I think sometimes it depends on the person you get because other underwriters surely would have thrown out our application. Also, Paul's advice about piecing together employment history sounds like a great idea.
@Paul Defngin - I know from listening to podcasts here on BP that they use the term house hacking to mean renting out part of your primary residence so that it pays for most or all of your mortgage. It's used quite a bit here.