Once a day, I feel like trash if I even skip one day.
Tho honestly I often wonder if twice a day is optimal. I always feel great the few times I take it twice, but when I only take it once, I always wake up wanting to shower immediately to get the oil off.
I had a similar issue and honestly I would just recommend worrying about it later. Don’t force it, just try it when you have some free time.
I started off with dual boot to play with Linux and jump to windows when I need it. Then eventually to full Linux once I realized I never actually needed it to do all my work.
I recommend Linux mint as its the most similar to windows and is built for new Linux users. I tried Ubuntu first and the experience was pretty bad, but I learned much quicker in mint and had a much better experience right away.