Honestly, I'm surprised it isn't possible already.

Split personal Buffs and Debuffs into their own frames.

Split Buffs/Debuffs from the Target Frame into individual Frames.

Also the option to highlight and prioritise your own Buffs/Debuffs on the target.
Currently I have every other Buffs/Debuffs on Target disabled because I cba to look for my own every time.
Especially if there are other Bards in the Team.