Flat nose from front view and unhappy with the result. (photos)

Thank you for your question, and I'm sorry you're having a difficult time.

Your dorsum does look too low on profile views. This can certainly be improved with grafts, and a multitude is available. However you need to wait for the healing process to take place, so that changes that will inevitably happen over the next year can be taken into account during surgery planning. 

If you're happy with your tip, then endonasal (aka closed rhinoplasty) approach may be a good approach for your eventual revision. In a closed approach, the incisions are hidden inside the nose, and the tip does not have to be disturbed. An in person evaluation and examination will be necessary to fully diagnose the deficiencies and the new anatomy of your nose, as well as what surgical maneuvers will be possible and necessary. 

Seek an experienced revision rhinoplasty surgeon.

Best of Luck!

Since it has only been two months since your primary rhinoplasty, it's important to wait at least one year before electing to undergo a revision. This will allow the healing process to be complete. It is also important to know how much cartilage is left on the inside of the nose for potential grafting purposes. The bridge of the nose can be built up  with the patient's own cartilage harvested from inside the nose.