When was the last time you intentionally disconnected with all that is happening around you? Had a quite time for yourself? Spent it on observing what is going on in between your ears? Could have been a while? No wonder you are constantly busy, even while you seem to be resting.
You cannot win in life when you are losing in your mind. Inner strength and a positive attitude are indispensable assets to achieving any goal. So, hit the neighbourhood gym, go for a run or do yoga, or even drop to the floor at home for a few planks in the morning, ensure that you achieve a certain fitness level. After all, strong bodies are usually the healthiest, happiest, and most successful.
Inner strength building is neither an easy nor a quick task. It is a lifelong process. There will be road bumps along the way to achieve that strength but it will be a path worth travelling.