If you got approved for an FHA loan for 30 years fixed at 6%, you've got about the best deal anyone can hope for! Grab it!
The Fed funds and discounts rates may be down, but mortgage rates are increasing, fixed rates are becoming more rare because interest and inflation rates are increasing. And people with anything less than the best credit are being denied. Credit is very tight and the economy is tough right now.
Next time, do your homework FIRST, then apply for loan, credit card, mortgage, etc. You lucked out this time, but if you don't do your homework first, you could get yourself into a terrible mess.