While I am not admitted to practice in yoru state i would highly suggest you meeting with an attorney in your immediate area, in NY there aqre provisins for early release from probation... perhaps you may wish to look into this possibility
The only way to amend terms or conditions of probation are to get the matter back in front of a judge with the authority to amend or change the conditions. I agree with my colleague, consult directly with an experienced GA criminal defense lawyer who can advise you of the process that GA requires for these types of applications. Good luck.
DISCLAIMER I do not practice law in your State. This answer is provided for informational purposes only. This answer does not constitute legal advice, create an attorney-client relationship, or constitute attorney advertising.
You need to speak to an attorney about filing a motion and asking for a hearing on the matter. It is possible a judge will modify the sentence, but without a good advocate pushing for you, these types of motions can get pushed back and forgotten. Speak with an attorney soon.
You need to speak to an attorney because you will need to file a motion. That does not mean that you have to have a hearing. Occasionally, terms of probation can be worked out with the prosecutor in advance. There are a number of qualified lawyers in your area that can help you with your problem.