疲倦已让我懒得怀疑
[pí juàn yĭ ràng wŏ lăn dé huái yí]
This means 'Exhaustion has made me too lazy to doubt'. It indicates that the person is physically or emotionally drained, to the point where they do not want to be skeptical about anything; everything becomes uninteresting or indifferent because of fatigue.