@mksamas I was the exact same way.
But trust in the process. Most importantly, you need to do the exercise in order to improve the exercise. Nothing will make you better at overhead squatting than actual overhead squatting. Doing it with the female barbell and focusing on positioning and maybe holding in the bottom position for a couple of second will help a lot.
Stand on plates or use lifters in order to get real deep and just trust in the process. Progressing OHS is a really slow process.
I spent my first year of CrossFit not being able to OHS more than 40 kg for a single, nearly gave up. Today, three years in I am finally comfortable in the bottom position and can OHS 95 kg for a single, which isn’t a lot compared to the freaks here. But considering where I was I’m really happy with it.
So yeah, don’t get discouraged. Keep chugging away. Thought you might want to add some extra work if you really want to improve the OHS. If you workout 3 times a week a imagine you OHS every 2-3 weeks, and that won’t give you any improvements I’m afraid.