"Weekends" is the plural of "weekend". You can use the plural this way in place of "On weekends". I used the imperative "Live in the moment". It would also sound good to say "Let us live in the moment". You can also say "to keep" in place of "keeping", but both sound good and there is no real difference in this example.

Hello to you

U.S. edit. 干得好，坚持下去！