Hi Paulsandy and welcome here.
I also felt lonely and insecure while drinking - that is one of the many things alcohol does to us. It wants you to cut yourself off from others so that it can have you all to itself. To ruin your life further and get you to isolate yourself.
SR helped me so much, to engage with others in the same position I am in . It gave me a sense of belonging , which is exactly what I needed.
I hope you find comfort here with us. You have done the right thing coming here. Keep your head up, and stay strong.