Those bare areas between the cheeks and chin areĀ not at all unusualĀ in younger guys whose beards are still developing, and at 23 you are certainly in that category. I think that it is quite probable that in the coming years you will find that those areas will have filled in and that your beard generally will have become a lot stronger. I reckon that your beard looks OK as it is now, but if you feel more comfortable in trimming back to goatee/moustache and sideburns, well, that is your decision.

Keep growing. Stay bearded!

wulff