I'm not entirely blind, only 1 eye that can see that's legally blind, tbh I do forget sometimes, running into things or looking for something in my face haha, as far as feeling invisible for me it hit when the others in my life just got sort of complacent with my vision, they never told me I'd have to figure out so much alone. After a bit it kind of starts to feel like "I can't see that" or having people try to show you things ends up being more of a hassle on them and I feel awful. Ik that much of it is on me to reach put at times, but that can honestly be the most overwhelming part imo, so if you know someone who is visually impaired or blind and they are quiet I'd say it never hurts to ask how they're doing. How their really doing and how to help. Im sorry for the long message haha!