there are many herbs that can help you with fatigue.
i would begin with the easiest i can identify. for example dandelion and nettle. and those you can exactly identify and grow near you, you can consume daily. more and more your body and mind will get used to it to your routine and you can try to identify more plants that can be used for certain areas.

best regards and i am happy if you tell me which herb you wanna try :D