There are many ways to feel more motivated. One of them is to just find inspiring reasons for you to finish something. This, if they really inspire you, will likely increase your sense of vitality and lead to better productivity. For some people, though, finding truly inspiring reasons can seem difficult at times when we just want to quickly finish something that we lack interest in.
By taking tonic herbs, though, this can turn around without you having to think about it completely differently. They naturally uplift and increase vitality to the extent that being more productive can become almost effortless. You might find yourself doing something that you were avoiding before and finishing it with less effort than you thought it would take. Or, if there a lot of effort needed, you won't be resisting it as much and you might actually have fun doing it.
In particular, Chaga is noted as being a powerful herb for increasing feelings of well-being and motivation. Taking this can potentially increase overall drive and creativity toward various tasks. Many people have found that taking Chaga consistently decreases stress and improves overall vitality and "motivation energy". Author and nutritionist, David Wolfe considers Chaga to be a Jing tonic, which means that it increases the deep inner energy associated with adrenal, kidney, and reproductive power.
Another well-known and prominent Jing tonic is He Shou Wu. This powerful root is known to increase adrenal and kidney function and promote a sense of vitality. By taking this product, which is associated with youthening, a natural sense of well-being often results or at least shines through more profoundly. He Shou Wu is noted to be so powerful that it has been found to radically increase reproductive ability for both men and women. This can be something to take note of, whether or not you are trying to increase this ability.
Schizandra Berry is another tonic herb that can increase motivation and productivity. While it does increase Jing and therefore kidney and adrenal function, it also has a unique alertness producing quality. This, since it does not stimulate in any kind of depleting way like coffee is said to do, allows you to increase alertness and sense of vibrancy without having to feel more tired later on in the day as a result. For staying motivated and alert so that you can feel more "ready" to finish whatever you are working on, Schizandra is a wonderful option.