The odds are against you from the outset if you filed a bankruptcy case on your own. The Bankruptcy Code is incredibly complex and often times, it is what you don't know or what you left out that can get you into trouble with the U.S. Bankruptcy Trustee, which is why it is a good idea to get the help of a bankruptcy lawyer as early on as possible. Even though you filed Pro-Se (representing yourself), it might not be too late to enlist the help of an attorney who can review the Trustee's Motion to Dismiss your bankruptcy and see if it can be saved. Perhaps the missing documents can be filed right away before the court date. If they are filed correctly and within the appropriate time frames, you have a better chance of either the Trustee withdrawing the motion or the judge allowing your case to proceed. It would be a good idea to have the attorney review the Chapter 13 plan as well, so that you don't face further issues with having it confirmed.
While it is tempting to try and save money by filing for bankruptcy without a lawyer, it is generally not a good idea- especially in Chapter 13. The majority of the fees will be paid by the plan itself over a three to five year period and should not change the amount that you pay each month into your Chapter 13 plan, because of how chapter 13 works. This means that money which would have gone to unsecured creditors such as credit card companies will now go your lawyer instead which is a direct benefit to you.