21M CEO of a startup. Feeling as if things are getting delayed, working like 13-15 hrs a day.

https://preview.redd.it/h3cy46adxu3h1.png?width=1032&format=png&auto=webp&s=66782b497e2d94376ea6d74d9caa4f4cab2e09dd

Company is well structured and stuff, goals are clear, but as if things are getting worse, like out of no where, it started going bad. Even in my personal life, things are quite heavy, feeling as if I am lagging behind, messing up things, not getting relevant output even with suitable input/work. Also kinda feeling burntout.