I would love to see your paintings.
As for the vacation.. I do not know what to say. It sounds frustrating and yes, it sounds like you were blindsided (it really does not matter the reason does it?) Perhaps, next year's plans need to be changed. Perhaps you and your parents go on vacation and everyone else stays home to fend for themselves? Not being appreciated or considered hurts and I am so sorry your vacation was not as you hoped it would be.
You need to remember, you are worth it. What is "it"? "It" is anything desirable, pleasant and good.