You don’t have to tell them shit because you’re an adult. Just go toward whatever direction makes you proud and hope that they’re the kind of people that would be proud of you just for being true to your ideals. I would suggest you prepare yourself for a time period spent in a lower-level job in a field you don’t necessarily enjoy, but thems the breaks, kid. As long as you’re bringing in a check to pay your bills and pay for some fun you’ll be fine as long as you never stop trying to figure out what your goal is.

Then I will tell you that dreams don't really come true but you can wait until you're about 27 to realize that. Dream big in the meantime, and then hopefully you'll have a large enough nest egg saved up that you can spend it all on alcohol while crying about how nothing in this world ever works out and then we die.

Good luck!