if you file a bankruptcy, it will hurt your credit, however it would wipe out all personal debts you have including the personal loan and car loans.
If you want to keep a car you can reaffirm the car loan and pay it outside the bankruptcy. The student loans will not be modified, and will have to be paid.
In texas, in order to file a chapter 7
bankruptcy for cases filed after March 15, 2009, the median income for a single wage earner is $38,545; for a family of two, it is $54,908; for three, $57,053; and for four, $66,400. Add $6,900 for each individual in excess of 4.
If your income is above this, you will have to file a chapter 13, which means that the court would allow you to pay your debts off in a plan up to 5 years, it will also possibly wipe out upto 90% of your unsecured debts.