I want to be a scientist but university+ADHD doesn't work out

I face 2 big challenges:

1. Being indecisive, having multiple different interests and therefore not knowing what to major in. Despite wthe fact that I've been thinking about this for years, I simply do not know what to study because there are too many options.
2. ADHD+burnout and inability to get lots of work done: I had to quit uni 3 years ago because the amount of homework was simply too much for me. I could not keep up with the pace, didnt have enough energy and focus. Because I could not get all my homework done within the deadlines, I didn't have any good grade not even a single one.

Right now I'm just learning programming and math on my own. Roughly 8 weeks per hour, and thats already tiring enough due to my super low energy level and inability to concentrate.

But I love math and science and technology. I love learning fun and useful things. I know that I want to be a scientist or an inventor or a researcher or maybe something in IT.

When I play a videogame and a weird bug happens which gives me an advantage in the gameplay, I always try to reproduce it and spend alot of time making and testing theories about why that thing happened and how to make it happen again in a controlled environment. I wish I can do this kind of thing in real life too, but as an individual I sadly don't have a lab, a social network of scientists, or any other tools necessary. I guess a formal degree is necessary if I want access to any of those. I would also like a salary so again I think a formal degree, however I obtain it, will be necessary.

Assuming that if I made a decision about what to study... I'm considering the following options, even if I think they are bad, just listing all the possibilities I can think of:

1. Just go to uni and study full-time. Bad idea though there is a 99% chance I cannot keep up with the pace due to my ADHD and recent burnout.
2. Go to uni and study part-time? Like only haveing 1, 2, 3 classes per week instead of 5. And less homework per year compared to full time study. Is this possible?
3. Go to uni that allows a dynamic pace, whatever my own pace will turn out to be? Is this possible?
4. Sign up at one of those websites that lets me study at home and do exams and get certificates for each subject? Would this path possibly get me into science?
5. Self-study or other forms of informal education, and as soon as I'm ready I can take exams in all the required subjects to prove my knowledge? Is it possible to become a scientist this way?
6. Find out which subjects I will have to follow in uni, then self-teach all of them, and then sign up for the full-time uni program and go through it with ease because I already have most of the knowledge?
7. Other alternatives that I haven't thought of?

I have some advantage: I'm naturally very good at math and logic reasoning. I also have an extremely curious mind, science always interests me. I find it the easiest to learn things if they truly interest me.

But the simple truth is that I have very little energy and can only get so much done per day, meaning a full time study would not work out for me at all. It would get me back into a major burnout really quickly..

All advice is welcome.