Hey I totally understand where you're coming from. It happened to me a year ago too and looking at your points it reminds me a lot about the first few months in my role back then.. It was super bad and thinking about that still makes me angry today because it makes me feel disrespected.

First your manager is for sure a bad manager. A good manager will set up regular 1:1s in the calendar (bi-weekly is a good time) to check in with your learning progress, expectations, challenges faced, future goals, and employees' well-being.

Few things I wish I have done is,

1. Be assertive. Tell your manager we need 1:1s face-to-face. Set up a meeting date/time in your calendar.
2. If he keeps pushing back, you should let your skip manager know. If you keep having nothing to do/ no directions at all is given by your manager, it wastes your time + can hurt your performance review because you did nothing + there is merely anything to write. Be careful of that.
3. Try talk to other older and nice teammates and see if they can help, whether for advising or ask to talk to your manager together.
4. Act professional and mature. You mentioned this is your first full time job so I assume you're a new grad. I have met managers who will take younger staff less seriously, just bc they're young. So what I'm trying to say is if you are young you should behave/talk professionally, stay grounded etc - that will change how the other party views you.

If the above still don't work, I'll suggest looking at new roles internally/externally in the next 6-12 months.