One of the most valuable lessons I have learned during my health break is how to deal with burnout. Burnout is often a sign of anxiety catching up with you. The tasks in front of you are monumental, so you become unmotivated, overwhelmed. Which further decimated your productivity, which further sucks you into this vicious cycle of crippling anxiety. For me, the key to dealing with is being patient. You are in quick sand and the harder you fight the deeper the hole becomes. Instead, you need to have faith that you will become afloat again if you just take a break and leave things be.
