I'm self-learning math and, honestly, it's come down to finding someone to help keep me accountable. In this case, I got lucky enough to find a guy with a PhD w

I'm self-learning math and, honestly, it's come down to finding someone to help keep me accountable. In this case, I got lucky enough to find a guy with a PhD who suggests books to work from, as well as which problems for each chapter/section, and then checks my proofs and discusses things with me. It was super lucky, but if you can find something like that, or even just someone to do the material with you, it could be much better. Another thing I do is schedule time. Especially since I've been off work, I've scheduled specific times where I do nothing else. I go there, log on my computer (I work out my solutions in Overleaf), turn off email notifications, mute my phone and place it elsewhere and just work. I've found that having a scheduled time makes things 100 times easier, as it mentally prepares me to just keep doing this. Other than that, it's don't doubt your resources; resource paralysis is a real thing (you see it a lot of the time in language learning too), they're all basically the same if you're working from a published textbook. Just pick one and stick with it.