I agree it sounds like with regard to your own physiology you have been short changed with the dose of estrogen.
I would increase to a higher strength patch - as above you can take progesterone separately which can be a better option and easier to access than wearing two combi patches.
Also make sure you are doing everything to help them stick such as cleaning the skin with alcohol first and using an adhesive dressing over the top.
The mouth is designed to get things into the body whereas the skin is a barrier which is meant to keep things out, hence not everyone absorbs it brilliantly this way, with wide individual variability.