oh this is great question first of all gotta say thank you for phrasing this way and asking what CHUCK does, not what YOU should do. i will not tell others what THEY need to do (that kind of thing is always dang red flag for chuck) but i would love to share my own journey.
finding joy has a lot of paths and roadblocks and it is different for all buckaroos. sometimes there is chemical imbalance or trauma or you are trapped in a endless maze of harmful patterns, and sometimes life is just difficult in a very average everyday way that IN ITSELF is overwhelming. just existing is A LOT bud.
here is why i am usually very happy and in a state of joy: way of GRATITUDE. now keep in mind this is not that simple and my words are not cure all for every bud, but if it helps i will explain my thoughts.
THE CALL OF THE LONESOME TRAIN is the awareness that our time here in this reality will end, and this call is a double edged sword. it can haunt you and bring great sadness, and it can tear your dang heart out when someone you love has to board. but for chuck it is also the source of my gratitude and motivation.
i am constantly aware that i will eventually have a LAST DAY on this timeline. i do not know when or where or how i will board the lonesome train, but it is a guarantee this time will come. if i picture myself on this day, lets say lyin in a dang hospital bed, i know that personally i will REALLY NOT WANT TO LEAVE. on this last day surrounded by loved ones everything has VALUE. i will think 'just one last walk in the park' 'just one last kiss' 'just one last chocolate milk' 'just one last quiet moment looking at the way light moves on the floor from the window'
i will have SO MUCH GRATITUDE FOR EVERYTHING ON MY LAST DAY and think 'i would pay a million dollars for one final trot around the block'. but here is the thing: EVERY DAY HAS THAT MUCH VALUE WE JUST DO NOT HAVE THE PERSPECTIVE TO REALIZE IT. every moment is all just grains of sand and those grains are always the same sand, we just assign different value to them.
so when i wake up in the morning i often think 'one day i will look back and give anything to be here,' even if it is a stormy day, or i have a difficult task or a hard talk ahead. even if i am sick or tired or depressed. i am aware that as a human being trotting through this reality i am going to tend to UNDERVALUE the present. and then i try to give the present the value it deserves.
hope that helps bud. my way is not the 'correct' way and maybe you can find a better one for yourself, but it might be worth giving this technique a shot if you would like. maybe you can adjust and find a good balance that is all your own. LOVE IS REAL