Product: Mortgage

I had to re finance about XXXX and a half years ago as I was having a XXXX car garage added to my house which I had built and had been paying for since XXXX. I only owed principal around {$50000.00} and it was going down about {$800.00} every month which was exciting! Light at the tunnel so to say. Someone else was paying for the {$60000.00} garage to be added so I was doing great. They paid the contractor the first {$30000.00} to start and refused to pay the rest. So I was stuck with an extra {$30000.00} to come up with. Also I had gotten a car with the contractors company, in which he stated he would pay for the car and to finish the garage! Long story. Throughout the next 3 years some things got done others didnt bottom line is I had to refinance and get $ XXXX of equity my interest went from like 3 % to like 4.75 % and my payment went up to about {$950.00} a month. And extended back out to another 30 years after id already paid XXXX years on it. Got my car paid off, which I ended up paying EVERY payment myself even though it was under his company name and my name. And I ended up paying him an extra {$33000.00} from the refi in addition to thousands that I had paid in the previous 3 years along the way, his promises to pay for things were total lies. So since then I have had that refi increased because of insurance rates, property taxes and the such. I have had assistance in many ways many times and this last time they did a modification! This is my problem at the moment! I did this to HELP me they put this under financial assistance!!! It is with Carrington Mortgage, and it was to start XXXX XXXX in the amount of {$1000.00} and it is now up to $ XXXX???? It was to be my old principal amt of {$130000.00} what I started with on my refi which was then at {$120000.00}, will now be a principal of {$97000.00}? They said it had been reduced by the principal sum of {$34000.00}? At first I thought wow awesome! But as I read on not only did that become a balloon payment at the end but the end was in 40 YEARS! XXXX?! Then I saw that they raised my interest rate to 7.8750 % and I thought how in the XXXX XXXX I ever going to get out from under this now? I feel duped and used and every time I spoke with someone they were rude and XXXX with me! I worked for the United States Postal Service for almost 10 years but injured my back had to have XXXX back surgeries and have been permanently XXXX since XXXX. I am drowning in debt trying to keep my head above water. My son is XXXX now but I raised him on my own and he now has his XXXX XXXX. I did my job there! My fianc and I have his XXXX XXXX XXXX son half of the time and trying to feed and cloth and parent again at XXXX with a messed up back and many, many medical issues is sometimes beyond difficult! I am in constant pain see a doctor once a month for medications and am quite XXXX  most of the time let alone having to deal with now trying to pay almost {$1100.00} a month for my house! I dont want to lose it because I worked so hard for it! Any information or help will be appreciated! And I dont know if its pertanent to the issue or not but I am a college graduate, and there was a time I didnt have problems paying my bills, I was able to have my house built, and get a mortgage on my own in my mid XXXX. Thank you for any help!