Does love get any easier?

I've been dating my boyfriend for about 4 years now. We love each other, but we drive each other insane sometimes. We always laugh it off and have a usually good time together, but lately it's just been getting harder and harder it seems to get along, or sit in the same room without picking at each other. We really do make each other happy, for the most part, and we laugh a lot together but we're really young, still in high school, and the pressure of our future puts strain mostly on me, cause he's got this plan for his future-marines, and plus he's got a **** load of money waiting for him. He's just set. I am not, at all! My future is looking a little bare and bleak and it scares me whenever it's brought up. I plan on moving to Boston right after HS with my best friend, but even with that set for me...I just don't know. I'm jealous his whole life is planned and basically given to him, like all that money. While I have to bust my butt for everything I want. I love him and happy for him, but it's hard not to be a little irritated when he's all cheery about the future. He wants basically me to wait around for him while he's gone and then marry me, have some kids etc. I love him and want a life with him definitely...but I don't know. I want so much more. Like I want to travel, meet new people, try new things, be my own person. Not just his doting wife lol. I just wanna know if love gets easier and if I'm a ***** for being jealous of my own bf?