can I suggest you post on the adoption board so you get an informed response.
Adoption is not an easy route to a family. Many adopters suffer from post adoption depression, in the same way women suffer from post adoption depression, uand any mental health issues you have can be triggered by adoption. You need to be resiliant, strong and resourceful.
The approval process is rigourous, you will have medicals and a home study. You will need referrees and will have your finances checked. You will need to be living in suitable, stable accommodation. You will need to demonstrate experience with children. You need a good, solid support network around you.
How would you finance adoption leave? What would you do if your child had so many needs that they need a stay at home parent?
Children in the care system can be impacted by alcohol and drugs, they can have poor genetic inheritances, they may have attachment difficulties, behaviourial disorders, ASD and ADHD are common, developmental delay and developmental trauma. Many will have parents will poor mental health, learning difficulties.
I could go on but hopefully you get the picture that its not a walk in the park.