I agree with Dee.
If you really mean to get sober and into recovery, you will do more than take phone calls from people who want to use.
By the way, if the alcohol and drugs are still in your house, the reality is a relapse is pretty much inevitable.
You have a child coming. You should be stepping up to care for the mother instead of her managing you trying to keep you sober.
It’s good you are detoxing, but that is a tiny first step on a long road and you need some tools you don’t seem to have to be successful.
Rehab can put the odds in your favor instead of against you. I don’t buy the “scared” as in fear of harm claim. I think you are scared to make a real commitment to not using anymore.
You, your “friend “, and the baby you made together deserve a real chance. If you can afford kilos of coke and fancy cars, you can afford rehab. Be honest with most important person of all-yourself.
What are you real priorities?