You will ultimately have to answer this yourself, but here are some personal thoughts that might help you:

• hobbies are nice, but I wouldn't force one just for the sake of having one
• cooking, diet and exercise are always good picks to spend time and energy on
• you'll probably have at least four decades of working full time in your life, so I wouldn't rush getting into a job if you're not financially dependent on it. There's also part time jobs and internships.
• if you're in a country with cheap or free college, there's a lot to gain and little to lose by just trying it out
• depending on how good your social skills are, having an autism-friendly environment can be a massive improvement to your life quality. Some choices will be more effective for finding this environment than others. For example, you might have an easier time making friends if you're studying CS and getting into DnD than if you're working in sales and getting into football. That's of course a broad generalization and again something you have to figure out yourself, but it's helpful to be aware of this as a factor for your life quality.
• most importantly, what interests you? Maybe you even have an interest where grinding the basics comes naturally to you, not just the superficial fun parts? Which fields interest you can also be a factor when deciding whether you want to go to college.