I need advice

I am a single mother. I left my ex husband and have been in the process of a contentious divorce and custody battle over my almost four year old son with my ex since 2021. I am currently in a relationship since 2022 with a man I grew up with. The relationship is very good but things are not able to go where we both want them to because of my divorce. I have a protective order against my ex and he has had no contact since receiving divorce paperwork with me or my son. I am working long hours as a waitress through the week. I am stressed a lot but I make ends meet for the most part. The issue is the only way I can afford my bills and make it to work is by dropping my son off with my mom, who lives over an hour away, all through the weekdays when I work, and picking him up on weekends. My current partner has been a dad to my son. The only one he knows. He lives an hour away in the opposite direction of my mom. My son and I only see him on the weekends. I am currently stuck in the state I am in until the divorce is settled… which wont be any time soon since I cant afford any more attorney fees to push it through at the moment. My ex is dragging his feet. He has no job, no car, and no place to live. And hasn’t since the divorce began. He has no chance of winning anything in the divorce he just wants to drag it out in hopes I’ll come back because he has nothing without me and will make no efforts to acquire his own living. My attorney advised to basically wait until he finds someone new to take advantage of and realizes this divorce is holding him back. But I miss my son. I hate being away from him. I cant move to be with my partner so we can help each other with the kiddo and work situation because a.) the divorce, I cant have someone else living with me and my son until its official and b.) he lives in a different state. My partner cant leave his job so he cant come here. I cant move closer to my mom because she is also in a different state. I cant afford babysitting. I don’t have any friends close enough to help out. I just don’t know what to do or how to keep going. I am struggling so hard. I just want to be with my son and I cant be his mom the way I want to and it sucks. I don’t want to do this forever… I hate it and I don’t know what to do.