You can never do enough basics in Martial art. If you think that you don’t need to, then i om sorry to say that you are not good enough.
No one is perfect, and if you can’t point on your own errors, or at least analyse yourself for better performance of the techniques. Then you can’t make progress.
Of course you can trust your trainer, but it’s your body and mind.
Don’t do everything as all the other people, do it your way. By that i mean follow the rules in your art, but change your way inside the rules.
In the and have fun:)