Throughout life. Allopathy
controls well, does not cure diabetes
My suggestion is to switch to herbals gradually, initially taking it parallel to allopathy with some gap. No interaction of herbs with your current medicines. However you can not take the risk of quitting allopathy abruptly.
Its not a matter of weeks or months but of years but there will not be side effects. But you may hope to see new lease of life with improvement in quality of life. Deep breathing, meditation
, food modifications, light exercises, walking, light yoga
will all be helpful Pl consult online for any query.