There exists no matter in which Allah and His beloved Messenger SAAW didn’t guide us, dua and solution of anxiety and soreness also gifted by Allah Subhana Wa Ta’ala through his Messenger Prophet Muhammad SAAW.
If you are feeling anxiety, sorrow or weakness, you can seek the following dua,

Transliteration: allaa-humma innee a‛oodhu bika mi-nal-ham-mi wal-ḥazan, wal-‛ajzi wal-kasal, wal-bukhli wal-jubn, wa ḍa-la‛id-dai-ni, wa ghalaba-tir-rijaal
 

Translation: O Allah, I seek refuge with You from anxiety, and sorrow, and weakness, and laziness, and miserliness, and cowardice, and the burden of debts and from being overpowered by men

However, a person is not bound to say dua in aforementioned words, one can say anything a like in which the meaning of aforementioned is convening. Verily, Allah knows the intentions as well.