Someone has probably already asked you this but do you have any tips on studying/understanding perspective? I keep trying to find resources to learn but none of them really stick or are actually useful
so I'm hoping that your issue isn't just figuring out the difference between 1-point, 2-point, and 3-point perspective and how it works, because there are tons and tons of resources available for that, and I'm guessing what people tend to get tripped up on is what you're supposed to be doing with your grid.
I'm definitely far from being an expert on understanding perspective, but I'll share some of the things that helped ME finally Get It.
Things like eye level and different camera angles can be a GREAT tool to use when doing a comic or storyboard between multiple characters of different heights!! I actually drew an example of this exact thing for a friend about a month ago (I used adventure time characters bc they're easy to draw and have a good height variety):
You can use camera angles like this to add variety to your shots, and even use it to help convey something emotional (using a down-shot on a character to show that they FEEL small, use an up-shot on a character to make them look more intimidating, etc etc)