history: I am going on vacation to Hawaii next week.  I cant wait to go.  Ive already started packing I am so excited! I am going to Hawaii next week That really is something to get excited about! I've never been outside of the country_comma_ so I'm jealous of people that get the chance to. I hope you're able to get everything out of the trip that you want to
current: I cant wait to go.  I started packing already 
next: If I were you, I'd be the same way, just counting down the days. I hope your travel goes smoothly. If you're going with someone special, I hope you guys both enjoy your time there