It takes a lot of time to work through stuff, or even to get into stuff when starting with a t. it does take a lot of time.
The grounding techniques can take a time to learn and time to be effective too, but I really urge to keep practising them. Its okay if they don't really help at first... but keep practising them, because as you go through therapy it will be *really really really extremely!!* helpful to have some grounding techniques that work for you. I wish I had known more / used more back when I was working through stuff.
in a way it can kinda be essential to have good grounding techniques in place before you try to figure other stuff out... because the other stuff can be overwhelming in a very not good way and it really helps to have some skills to help clear you head and find connection again. So I urge you to keep working on whatever grounding techniques she showed you, a little bit each day, because they will get easier and more helpful with practise. And you'll need 'em!!