Motivation is a tricky thing. You need to create it, it's not something anyone has innately.
Something I've been using lately, with good results, is to spend a few minutes at the start of each day reminding myself of the vision I have for my future. I previously collected photos or symbols of those things and spend a few seconds dwelling on each of them and trying to imagine how my life will be better then. Cultivate the dream.
A lot of those things I dream of will take a long time to happen so they need to be broken down into smaller sub-goals. Use chatgpt to help with this?
Once my vision has been refreshed I make a to-do list for the day.
Executive functioning is often hard for people with autism. Some of the techniques that people with ADHD use can be helpful, as they have the same issues. Lots of info on the web out there about this and your public library will have free books on it too.