Maybe take some time away and focus on yourself? You're at an age where that is important for development though there's nothing wrong with continuing family trips if that's what you want.

You said your father just made one offhand comment about a tailgating vehicle but you also implied that he has an unpleasant temper. Can you elaborate on that? The two perceptions seem at odds but I wasn't there...I don't know

And no, there is no age at which it's too old to take a trip with one's family if that's what one wants to do. Only a 20-something would ask that and I mean that in the nicest possible way!