Here is the first DIY course for you...
You'll find all the links you need to get going and do it yourself
First there is a link to a video that is a screen capture of a class I ran at university on positive psychology and self. It's geared for a class at university level but I think there are enough "nuggets" in there for you to get something out of it
The link is https://youtu.be/4FHvv2rHVTY
You'll also find attached here the accompanying activities that use the information in a practical real world way.
Again this was developed for a university class but there is enough in there to get something interesting out of it
I hope you enjoy having a go at working through these activities let me know how you go....