Hi L, firstly can I just say you are absolutely amazing for accepting and admitting you need help – everyone does at somepoint in their life. I have never personally attempted to take my own life but have thought about it on many occasions.
You are taking all the steps in the right direction for you and your little boy. You will find a way through this and there is light at the end of the tunnel.
Just make sure you talk about your feelings to family/friends/partner or even online, keeping anything bottled up will make things worse.
Sending love and wishing you and your little one all the best!