A few comments: Keep fit or stay healthy is very important => TO keep fit or TO stay healthy (infinitive) / KEPPING fit or STAYING healthy is very important (present participle, not to be confused with the gerund that works more like a noun) you didn't need to go to the gym => You DON'T need to go to the gym there's very good idea to stay fit => THESE ARE very good ideas to stay fit. General comment: try to be careful not to speak too fast in order to work on your pronunciation.