New mom and leaving my husband.

So I honestly don't know where to start but that I want to leave my marriage of 8 years. I have been with my husband since I was 17 he is all I have known and we just had our first child together. There has been trouble in our marriage since the beginning honestly but it was all masked by lust and young love. As we grew older we became different people, I became very depressed and lost myself and he did too. There was a lot of problems with his family also and he always took his family's side over mine, that caused a lot of resentment. I went through 2 miscarriages after my first one, he said he would never trust me to be a good mom because of my depression, gain more resentment. We have had sex maybe 20 times in the last 2 years and a half again more resentment, hurt and emptiness. Well when I was saving up in a separate bank account to leave him I got pregnant thought it would be another miscarriage but thanks to the Lord my son was born on 10.22.18. He has jump started my life, I am taking care of myself, I am picking the broken pieces of myself back up little by little. I need to rebuild my life for my son and I want to go back to college. I am terrified of what lies ahead I have been dependent on him since I was 18. I want to leave but I want to leave with money saved so for now I will keep taking care of myself, save money and take a few college courses. Anyways I don't have many friends I can vent to or get advice from so I am telling you guys here. Any advice or support is apreciated ❤