Im already separated with my ex-wife for 5 years now, and I already have been providing support to my two kids now, but since I also have a lot of things I need to pay like rent, fare, food and clothing, sometimes I am not able to give the amount she demanded me to give, sometimes I skip 1-6 months, but was able to provide the full amount of the 3 months to her last December amounting of 14,000. last month I was able to give 500 for one of my childs birthday and another 1,000 when I got my salary, but she is always threatining my mother that she will file a case, given since sometimes I am not able to provide but I am willing to support not just the amount she is demanding from me since I have no means of reaching it since I have my own needs as well. Anything I can do as my defense incase?