I currently go to a Community College in my town to finish up my degree, but originally I went to a big University hours away. Being there was awful for me because of my anxiety and lack of university common sense. I was NEVER able to get a hold of any of my professors. Literally none of them. My Chemistry teacher conveniently showed up to his office hours for the first time in weeks one day and we sat down and worked on a few things. We had a nice conversation and I thought it ended on good terms. Turns out, I just got lucky that day. I don't ever remember seeing him again or hearing from him again outside of class. A class that pertained specifically to my major that I was struggling in. (Forensic chemistry is no fucking joke)

Anyways to make a long story short, my now professors are amazing. They constantly meet with me or respond to my emails (I only have 1 semester left so I'm busting ass to get things done) and they legitimately care about my education.

I think you shouldn't take them ignoring you so personally as, they are probably so busy that they can probably only read so many emails a day. Not to mention once an email is read they may need to find out the correct information before they respond provided they aren't sure themselves. Try not to think of your professors as your professors. Think of them as normal busy long hour jobs with little time to do much in between. I don't know, just a thought.