Combined pill and irregular periods

i have PCOS this pill was amazing for the first 3 1/2 years, it made me lose 10 pounds in two weeks from me changing nothing to my active levels and diet, my skin cleared up, i had lighter and regular periods, had a high sex drive until i started having very irregular periods in the last 6 months. including periods happening every other week and spotting between it even when taking it correctly so i decided to change contraception but this may be because of my PCOS

As soon as I started taking it, my first period whist on this pill came after a week and it was the most horrible period I’ve had in my entire life (it was a longer period then I ever had before (with really heavy cramps constantly) that was the first step in the negative journey. After that, I continued taking it and my acne got worse especially on my back. I had thought it would improve but was much worse event at month two. After two months of taking this pill, I’ve also gained weight which I noticed straight away but had put down to temporary water retention but seems to not budge and have had extreme weight fluctuations like never before and been feeling very off and not myself ever since taking it/depressed, also have lost all sex drive. I am at the point where it’s either stick it out for another month to see if symptoms ease up or stop and cut my losses. I’ve decided to stop.

Vagina is very dry and sex has become a chore as I also have a low sex drive now