From the article linked above:
Concerned sperm donors should note that these cases are probably considered outside the norm.
In the cases cited, the sperm donor was also involved in the children's lives. So it's technically possible but very unlikely.
If you've got any Benadryl/diphenhydramine in your medicine cabinet, it has some anti-anxiety properties. Not really something you can take for too long, for obvious reasons, but it can help in a pinch.
First of all, I agree with the other commenters about getting assessed for a learning disability and/or ADHD. Your post is more coherent and well-written than a lot of stuff by people with degrees, and you were able to do the math to figure out if you were going to pass. If you aren't doing well in school, then it seems like there's something else going on there.
Second, you might want to check if there's a career center or something near you. If it turns out you do have a disability and you live in the US, there's a program called Vocational Rehabilitation (voc rehab for short) that can help with career assessments and such. If you're not US-based, other countries might have similar stuff; try searching for voc rehab or occupational therapy.
Third...you school only gives you seven hours to register for classes? That seems insane to me. Is that standard anywhere? Maybe your schools just suck, lol.
People keep bringing up autism as an explanation, and as someone who is on the spectrum, has a sibling on the spectrum, and has at least one or two other relatives on the spectrum as well...I don't buy it. There's Something Else Wrong with that dude. I don't know if I believe in demonic possession, but Zuck is more or less what I imagine it would look like.
Also I suspect that most of the posts on r/inbreeding are fictional. The "niece" and "uncle" have identical writing styles, for one.
Genetically, as someone else pointed out, it's not a huge problem as an occasional thing. Ethically? It gets dicey.
Myopia/nearsightedness is one of the most common reasons for needing glasses or contacts. The happy people you're seeing online are most likely ones who only needed their distance vision corrected anyway (assuming the reviews were written by actual humans). I have farsightedness/hyperopia and astigmatism, and I've never really considered Lasik for similar reasons to you.
Haven't seen anyone mention Slay the Spire yet. The original is under 600MB and the sequel (early-access) is 2GB. They're both good! The first one is maybe a little easier, if you've never played them.
There's a ton of different variations on Pixel Dungeon. Shattered PD is probably the most fully-developed.
At the zoo, by the meerkat enclosure, I heard a woman ask an employee "what kind of cats are those?"
I can run antiX on my old Dell Inspiron, with 4 GB RAM and a 500 GB HDD. It's slow when it comes to browsing but it's functional.
Part of the problem is that the "Just Use BSD" Guys are to the FOSS-sphere what the "Just Use Linux" Guys are to the rest of the world.