when I am walking, many fresh and practical ideas will jump out form 【jump out of,不是from】my mind, which can help me to fix problems 【that I am facing now】I faced now 【你这都用now了怎么还faced呢?】.
In 【during】the walking 【walk,这里是个名词】, I can come up with many fresh and practical ideas, which can help me to fix problems 【that I am facing now,同上】 I faced now.