I didn’t know where else to post for help

What’s best for me, mentally right now and financially is to have my son stay with his dad. He’s 11 years old. I am more negative than anything so I’m scared because all I can think of is in the past, my son father never wants to help me. I never ask him for too much help when it comes to OUR son. So I feel like he won’t help or try to down talk me because I’m mentally messed up right now.

So, I struggle with bipolar depression and I’m at a space right now where I feel like I should be better, mentally, financially, emotionally and I’m just not there. I’m having mom guilt about my son and trying to get him to stay with his dad but I think this is best for us. Anyone have any advice ? Any similar stories?