I hate how my dad "encourages" me to learn

[Der/die AtheistIn]

I don’t want to say that you sound like fancy drinks girl in this post but....

But in seriousness you can’t expect your parents to be sensitive to your issues if you don’t tell them about it. I don’t know the situation well enough to say whether your dad overreacted. If your parents are paying for you to go to school of course they’re going to want you to work hard enough to make the grades.

I understand that, but I do really try my best. And I am grateful for what they did. I am human, they will be times when I'll fail and make mistakes. I understand that they're expecting me to do good, but they shouldn't expect me to be perfect.
I also know that "I can’t expect my parents to be sensitive to my issues if I don’t tell them about it", the problem is I'm afraid of how they'll take it. Dad is overreacting about everything. If I told him about my mood swings he'll become desperate. He might not scold me for it, but still be very annoying. Besides that I don't trust neither of them to tell about my problems. They have good intentions, but I'm pretty sure my worst emotional problems stem from them.
I made this post mostly so that I can get advice on how to control my mood swings while learning.
Also, you are totally right about not making assumptions about my situation. On the internet everyone can right everything and there is no proof that what I wrote on this forum is true. I could insist that I do, but this isn't proof.

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As wrong as your parents are on God's existence, I think your dad may be correct on this one.

Maybe he tells you that you don't try hard enough because he knows you can do better. Education is one of the most important things you can do for yourself. It not only can have a lasting impact on your entire life, it can greatly contribute to your growth as a person. You may want to ask yourself why you aren't as concerned as your father is.

I can empathize with you concerning crunch time and final exams, though. More than once in college, I felt like I was on the verge of a nervous breakdown. Try to strike a balance between relaxing and hard work. Resist the urges to party or procrastinate. Hang in there and do your best to make a final push. You can always collapse into a coma once finals are over. You can do it!

Thank you. The thing about my dad is I genuinely try my best to learn. Sure, you can always become better and sometimes the learning methods might not be suited for you, but I kind of found already the best learning methods for me. Maybe I can make progress my learning methods as well.
What pisses me off is that dad immediately uses threads to make me progress. I actually like to learn. Granted, at university there is a lot of work and it's a lot harder, I do get sometimes tired. 
I'm not that type of person who needs force in order to listen. If he simply told me calmly what I did wrong I would listen. I don't always agree with him, but screaming won't make me agree more.
He also told me "This is university, not preschool". If that isn't insulting, I don't know what is.
There is also the fact that perfectionism is one of my defects. I know there is no such thing as perfect, but I tend to get pissed if I do even the slightest mistake. I'm trying to control it, but I doubt I'll ever get rid of it completely, that's who I am.
It was worse when I was little. I remember when I was in 1st grade.I used to cry when making mistakes at my homework.
Doesn't dad remember any of it? Doesn't he try to understand if I'm interested in learning before scolding me? Sure, you can make mistakes, even when you try, but don't be too harsh on someone with good intentions.