Ask your family and friends for help. If your parents or in-laws are retired and capable, ask them for help with child care in the short term while you get things worked out. I'm sure they'll be willing to help.
If you're not already doing it or planning on doing it, go visit a therapist. That's a lot to handle and even if you're feeling okay now, it'll catch up to you. You need to take care of yourself as best you can because that's the only way you can care for your kid.
It honestly sounds like you've got a good handle on the situation at hand and have a plan for the future, just make sure to leverage all that support from friends and family to get you where you need to go. Those people love you and will do all the can to help you out.
Now, I'm not doing this as a single dad, but if you want to get additional education to put on your resume, consider something like WGU. It's something that you can do while your kid is asleep at night and it'll make you a more attractive candidate when it comes to applying for a job. You can works towards something that will compliment your current experience and provide a breadth of knowledge that expands beyond the position you have now.
Mostly, right now, just make sure you're taking care of yourself so you can take care of your baby.
I'm so incredibly sorry for your loss, I can only begin to imagine the pain you feel. I hope you find peace and closure and that you can provide the best life possible for you and your baby.
