My prescribing doctor says i should maximize the dose of sertraline for anxiet, currently 100mg before trying another ssri. previous increases made me feel better but plateaud after a while, effect wore off a bit. looking for a second opinion, thanks?

Different doctors approach medication management in different ways. It might be helpful to express to your doctor that you wish to try a different medication (if that is what you actually want). There are a number of SSRI and other medications to help treat anxiety. Many patients also benefit from the inclusion of therapy alongside treatment with medications.