Stay in my son's life

Hello my name is Austin, I am on here because I need help. The last eight months since our split I have had my son every weekend. He has a secure attachment to me. When I am out with him an his mother he only stays with me it doesn't matter who is around. We are going through a custody battle I just want everything equal and everything set up for the future so its already to go. She is trying to get where I have him only once a month. So I am spending everything I have to fight for him. I do work two jobs to cover my bills and child support at the moment and pay what I can for the lawyers and courts. I have a guardian of lightem hopefully getting approved to inspect what is best for our son. I already know the bills for this is on me. I asking please help me continue the fight so I can keep him in my life. I have been told some thing from friends of hers that I should not know so it worries me for our sons sake. Anything will help. I just do not want to lose Him in my life. If you know me you can see how he is with me. My life evolves around him. Thank you for reading. God bless and have a great week. Today is 6/13/2018 our first court coming up quick.