Good to hear your efforts are yielding results both in terms of feeling better as well as helping you with recall and dream focus.
Regarding journalling - no you don't need to write down every detail. You may want to note key points like who, what, where, etc. and contemplate on these to help build better understanding of what your dreams typically inlude, keep track of dream signs and of course practice recall.
For more interesting dreams you probably would like to get into more detail - they will also have greater value for you to remember. Finally, you might want to experiment every once in a while if you feel like it - how much can you actually fully recall (say for own research purposes). At any rate, for your average recall day - make your routine as comfortable as possible. In the end, dreams should be something we enjoy thinking about so we should approach them gently.
