Advice for a soon to be single mother???

I am about to be a single mother in June ❤️ however, I still get really nervous about doing this 'on my own'. I have the support of my family but I worry about my son not knowing the other half of his family. The father and I were never interested or involved in a relationship before conception, it was a one-night-stand type of thing, and he has been disrespectful toward me and the baby throughout the entire pregnancy so I haven't communicated with him in awhile. I've told myself that I was still going to accomplish my goals after he's born but is there any advice anyone can give me about taking care of a child and still going to school/working/etc. as a single mom? I'm very confident about doing this alone but I would love any advice or comments from anyone who knows about or is experiencing the same kind of thing?