Please take guidance from your concerned orthodontist, as he/she knows exact in and out about your case.
Do not switch to some other orthodontist in between, as orthodontic treatments are always well planned prior to your treatment and followed ... partially differs from one clinician to the other.
Next Steps
Never neglect the instructions regarding your removable orthodontic appliance followed by fixed orthodontic treatment, they have very important role in teeth alignment too.
Health Tips
Do take advise from your concerned dentist only.