What can i do to fix this asymmetry? Is a rhinoplasty still possible? And what can be done about the crushed right nasal bone?

Rhinoplasty can be safely performed after septoplasty but seek an experienced surgeon. An experienced Facial Plastic or Plastic Surgeon will be able to deal with the increased risks of revision septal surgery. The main limitation in performing rhinoplasty after prior septoplasty if finding adequate cartilage to rebuild the structural support of the nose. If this cannot be obtained from the nasal septum it can be readily obtained from the ear, cartilage portion of a rib or cadaveric donor tissue (my last choice due to some issues with warping and resorption). Fillers are a temporary solution and not without risk such as skin necrosis when used after prior nasal surgery. Further, fillers are camouflage. They are not a structural or permanent solution to your concerns.
Thank you for your question.Stephen Weber MD, FACS

Fillers are easy to balance a crooked well functioning nose. A revision surgery will do this permanently IF you choose an experienced revision rhinoplasty surgeon.

Rhinoplasty after septoplasty can be tricky. It has to be handled the right way by someone with experience in cosmetic and functional surgery in order to avoid the issues you describe. It sounds like you had a submucus resection type septoplasty where the non-structural cartilage is removed. That is unfortunate but no uncommon either. What is left is the structural parts of the septum, also referred to as the L-strut.

That L strut can be manipulated, provided the surgeon appreciates what your margin of safety is. The deviation can still be addressed and further straightening of your airway should be possible. If cartilage grafts are required, then ear cartilage is likely required, since your septum can no longer be used for that purpose. There can be limitations on profile reduction, depending on how much cartilage is left on the top of the nose.

If the majority of the septum is not instrumented again, then your risk of perforation should be very low. There is no real reason to re-do the septoplasty, unless crooked cartilage is still present. If that is the case, then the perforation risk is not particularly high.

Found the right surgeon and your goals should be achieved.

Best of luck