Testrosterone- how do i know if i need it? How has it helped others?Ppls experiences please

Hi all, i have been on HRT since September last year. I didn't get on with the pogesterone so I had a coil fitted in December. I am still struggling with low mood occasionally, sleep is dreadful, loss of labido, vaginal atrophy and loss of muscle tone. I am based in the UK where they don't seem to routinely look at or prescribe testosterone. The GP is convinced that the oestorgen levels are right for me and i shouldn't be increasing the dose. Should i be considering testosteron?