Challenging adoption applications

[MR5B00]

Bit of a long one so I apologise but need some advice….
I had my youngest August last year and had social services involved from the start of my pregnancy due to having my other children removed and adopted (my eldest was injured courts ruled it was either me or dad and because I couldn’t believe he would do such a thing and stayed with him had another 2 children they was removed at birth) I was still with him when I fell pregnant with my youngest and all throughout pregnancy and such but due to negative assessments and psychological i realised I need to be more for my boy, I asked the sw to help me leave in December but they wasn’t willing to help me so I left in January when I got a place to go unfortunately it wasn’t soon enough when we went to court in march April time a placement order was made as they said they couldn’t guarantee that id be able sustain the changes. I intend to challenge an adoption application (I’ve maintained the changes since January doing therapy staying away from bio dad and doing all parenting courses available to me I’m moving to my dads this month which is a whole different county family workers supervising my contract have all said everything in them is positive and I meet all his needs ) my son was in early placement and the adoption panel happened on the 2nd July I was only told this week so my question is how long will it take for the application to be made and has anyone had any success in getting their baby home after a placement order or challenging a adoption application? I’m trying to stay strong and hopeful but I’m scared I’ve lost my jellybean forever, I know I’ve made mistakes and I hold my hands up but I can’t go through losing another baby I just want my boy home I know I can be a great mum given the chance!