I've been in the same situation also.
Both my parents never speak of their emotions.
If you want to follow in my footsteps regarding this, get a (preferrably female) friend who is VERY open regarding emotions.
After spending some time with him/her, you will slowly open up and be more able to speak about your emotions.
Just start out with small things, and you will get there slowly.
Doing that has been VERY eye-opening for me. I can't really understand how I've been able to live like I did before opening up for my emotions.
Since my parents are bad at speaking of / understanding emotions, I still have problems speaking with them about such things.
But I can speak freely with pretty much all other people.
Good luck
EDIT: You should be a bit careful when starting.
As an example, let's say that you want to express that you feel ANGRY/DISAPPOINTED by something.
When trying to express those feelings and show exactly WHY you feel them, and WHAT you would like to prevent this in the future, it can be difficult to talk about it without showing any anger/disappointment.
Believe me; if you speak freely about your emotions, you will explain yourself much much better if you don't let the anger take over you.
I'm not native english, sorry if my grammar/words seem odd. Feel free to ask any questions.