Generally good I knew that you are trying to apply a simple present tense here. But we don't speak like that although people can fully understand your idea. 我喝咖啡和吃香蕉，我上班。 If there were no context, this sentence will sounds like I am always drinking coffe and eating banana and doing my work. You can just say 我(起床后)会喝咖啡，吃香蕉，然后上班。

用词很准确，非常不错。知道咖啡是喝的，香蕉是吃的。对非母语的人来说已经非常不错了！你曾经在中国待过吗？