>TFW you are starting to realize you are a brainlet doomed for failure

Trying to finish my highschool courses as an adult male (Ontario, Canada) so I can get an actual education and a real career and it's so hard for me. Has anyone else ever simply accepted they have a low intelligence and will most likely never make it in being smart?

It's upsetting because I realize with automation that while it greatly reduces the workload of skilled white-collar workers it hurts the lower paid and it will only get worse so I need to get an actual education and skillset but I may simply be too stupid. Is there any success stories you guys can share of where you went from brainlet-level to smart and successful?