I went through this same transition a number of years ago and yes it's very beneficial

What I did was:
- Remove negative influences and people from my life (especially the news)
- Practiced living in gratitude, "counting my blessing" every single day and being grateful for the tiniest things like a good cup of tea or clean drinking water. We are so priveledged in the western world compared to 3rd-world countries, there's a heap to be grateful for just there.
- Put things around me to remind me to think positive all the time, like post-it notes and printouts stuck to my computer (I still do this). It also helps if you write up what's positive about your life / what you're grateful for and use this as a bookmark or put it somewhere where you can read it every day.
- Realising that good could come from any situation and being grateful for that, eg - when I was sick and stuck home in bed I could be grateful for a chance to learn patience, when my work was particularly stressful I could be grateful for a practical chance to implement stress-management techniques, etc.
Most importantly, practice practice practice. Like any skill learning to think positive
all the time takes dilligence and a good amount of time to become an automatic habit, it took me at least 12 months to establish a permanent state of positive thinking but it is
definately worth doing. I hope that helps
