Progestogen-only / Mini pill and decreased sex drive

Lloyds Pharmacy gave me no warning when they changed my Crescent generic version of Desogestrel for Lovima. My fatigue is awful, acne (it's like reexperiencing puberty), very tender breasts prior to my period, and suddenly anxiety that has gone through the roof for no real reason. My sex drive had already suffered on Desogestrel, I need the mini pill due to migraines so not sure will I necessarily be able to tackle this, but so far I have just as low libido on Lovima. For the first time in a long time I've had period cramps, but minus any spotting or bleeding. On the plus side, perhaps no signs of weight change. Desperately trying to get a new prescription.

My periods are much lighter now, I probably bleed for about 3 days in 3-4 months - it is irregular though unfortunately so I can't predict when it may occur. My mood is much more stable than it was before and whilst using other hormonal contraception. I have been getting much more increased sweating recently though and had not made the link that it may be connected to the pill before seeing it on the Lowdown website. I have had a really positive experience with the mini-pill, especially after having used the implant before.

Was put on this to help with my severe period pains. It has helped but I'm not sure it's worth it with the side effects. I can honestly say I am depressed. I have zero motivation, zero energy, zero inclination to do anything I used to enjoy. My sex drive has disappeared it doesn't matter because I've bled for the majority of the time I've been taking it. I want to stop but my GP won't try me on anything else until I've been on this for 3 months.