I understand how you are feeling. Sometimes we need to pause and reset before being able to move forward in the right direction at full speed. It's great that you have many interests and you are curious about many topics. You have many options to feel mentally stimulated and engaged, and many options to make a positive impact. I also love science, sports, politics, business, music, drama, reading, and socializing.
Consider taking one task at a time, one day at a time. Start with a realistic daily "to do" list. Tick those boxes as you complete each task. Don't be too hard on yourself. If you have five goals for the day and only managed to complete three, you can take the last two to the next day. Make sure that you manage your energy and not only your time.
Start with baby steps looking after yourself. I tell you as an example, what works for me: Sleeping 8 hours a day, having a shower and shaving before eating my breakfast, eating healthy, exercising (could be anything from a walk to a long swimming session) minimum 30 minutes per day, reading and/or completing a mental game (puzzle, Sudoku, chess, etc.), preparing my "to do" list before going to bed, and making sure that I avoid sources of distraction when I am at work (for example, not accessing sterile social media, leaving my mobile in the car, and trying to complete one task at a time).
In essence, focus on what you can control (your sleep, your diet, your exercise, your private time) and be a bit more relaxed about what's out of your hands.
These uncertain times could represent a great opportunity to travel between the person that we are and the person that we want to be. The key is to enjoy the journey, not so much about the destination.
Finally, make sure that you are surrounded by people that have a positive impact on your life. People that care about you and you respect, admire, or love.