The only things that help me are energy drinks and an infusion of mate cocido, which in my country comes from the yerba mate plant. Is mate cocido sold in your country?
Some studies suggest that people who drink large amounts of yerba mate for a long time may have a higher risk of some types of cancer. This includes cancer of the mouth, throat and lungs. The higher risk is linked with drinking about 1 to 2 liters, or 4 to 8 cups, of yerba mate a day.
I notice improvements by drinking just one cup of cooked mate. It is sold in a similar way to tea, but there is nothing negative about it. Do some research on the internet, it is typical of Argentina. Maybe the cooked mate can help you, it is taken in a sachet as if it were tea.