@Francesca - don't panic. You have done as instructed, and it sounds like you've made excellent headway in getting your health in better shape.
My suggestion to you would be, keep doing what you're doing until you have your next test and know the results. If you have achieved what you wanted to, then any further changes you make will be your choices, because you want to.
If your numbers weren't quite where you hoped they'd be, you'd have some reading under your belt and maybe know what your choice of Nextdoor steps might be.
If you make changes now, you can't hope to know what helped or not.
Good luck with it all. You want a good result, and your medical team can't be angry with you, as you have obviously been trying to get things right. I doubt there is a single person here who got everything absolutely right, first time around.
Keep calm and carry on, as it says on mugs all over UK.