I had to do a post about this because all this doom and gloom about not being able to buy if you're a prequalifed buyer is mostly BS. Of course if your budget is under 500k, then yes, you will have very slim pickings. But you can still buy, you just need to reset your expectations.
My advice? Sit down with a lender and see exactly how much you can borrow. You might be surprised. I had a client who ended up qualifying for 100k more in his purchase price because his lender told him that the he just needed to wait until his car was paid off in a couple of months.
Maybe you need to buy a condo instead of a house? Maybe instead of Silverlake near the reservoir, you need to look into Atwater? Maybe that 1600sf loft you want should in reality be more like a 1000sf loft? You can't expect to have the same stock available to you as 7 or 8 years ago. Prices are up and inventory is low.
And remember, your first home doesn't have to be the end all. My last client who downsized into a smaller house because that was all they could afford, ended up renting out this house and buying a larger forever home. One property became two!