I focus on one topic a day. I realized it helps me to retain knowledge better. As of tools, I suggest you to check out this list of websites for full-fledged-le

I focus on one topic a day. I realized it helps me to retain knowledge better. As of tools, I suggest you to check out this list of websites for full-fledged-learning: https://custom-writing.org/blog/36-best-websites https://custom-writing.org/blog/36-best-websites There are tools sorted by study goals. For example, I use Droptasks to organize my tasks and files, and Braingle to train my brain.