I need information about refinancing my home?

I have been in my home for about 6 mos and I have bad credit plus a bankruptcy that was discharged. The bankruptcy was done dischaged before I bought my home which made my interest rate very high. I am trying to see if anyone knows if I can refinance after just 5 or 6 mos to lower my interest rate even though I also have a penalty of refinancing before my 2 years are up?