help please

[JFMMZZ 0]

My fiance has interview March 3, 2009. I am working and making over 125% of poverty for family of 5 since January 2009. (income from my 2 jobs = $32600). I was self employed and did not earn enough income to file income taxes for 2006, 2007, and 2008. I don't have a cosponsor. I will include employment verification letter and pay receipts. I have read that my current income is what is important. I have specific reasons why my income was lower in the past and I will include a letter detailing these reasons. I have a 12 year old daughter who is autistic and I have been a single father caring for her since her mother died when she was 3 years old. This is why my income was low in the past. In November I was named her conservator for her estate which contains over $178,000 and I receive over $18,000 for her per year from this for childcare and therapy for her and this has enabled me to work much more. Also, she is receiving $7260 in social security survivors benefits. What income do I include in the I-134? Thank you very much.