It’s a minefield to be honest.
Just start low as joziel suggested and stay at that dose for a 3 months ( if you can). If symptoms persist, increase again until you are at the maximum licensed dose.
Then, if you are still feeling rubbish, it would be appropriate to have a blood test to check absorption. If low absorption, it’s probably time to change product and start again.
It can be a slow old process, but I can’t stress enough about maintaining a stable oestrogen dose for a decent length of time. In the last two weeks, I’ve increased, decreased and gone without oestrogen. Fatal mistake!! The repercussions were brutal. Now back on my stable 75 patch and all is okay ( for now). Blood levels are subjective. Mine are 300. libido is through the roof, some anxiety, no irritability, no flushes, don’t sleep well.. just a real weird mix right now.
There’s no way I would introduce testosterone, nothing would ever get done !! 😊 ( libido issue!)
Definitely forget blood levels
( unless you’ve reached the end of the line with a product) and go on symptoms. Keep stable. More is not always best.