This is going to be an obvious statement, but if you want a new look you have two options, shorter or longer. Shorter is a faster change and you have a pretty face so you could pull it off going a little shorter, but I would still recommend a bob, just a shorter one. I don't think that is enough of a change for you IMO.
I think you should grow it out a little more. This takes longer but I don't think you have to grow it too much longer before you feel the change. Maybe just to your collarbone. And as it grows gradually transition from a bob to long layers.
The goal being something like this
