Basically I've put her interests ahead of mine our entire relationship. She's always worried about the future and I'm more a "live for today, tomorrow might not come" person so it's probably for the best to move on. It won't be easy 
Thanks for listening bros
Hey ERII. This is a real tough one. I won't go into how I was also once engaged. Let's just say it didn't end well. If you really want to give it another shot, communicate. Talk, talk and then talk some more. Give it your freaking best and all that you have. If it doesn't work out, brother you did every damn thing you could and their is no regret/shame in that.
The worst part about the engagement fiance dumping is the pain it will cause (you, her everyone). If she is steam rolling you brother, man I feel for you. Nothing hurts more than constantly putting someone first and they see right past you like what you did was expected. If you did everything you possibly could, no worries...it just wasn't meant to be.
Be resilient, be cognizant and realize that maybe the person you are putting yourself out there for is not doing the same. You cannot reason with the unreasonable and you can't make anyone feel a certain way. One of my favorite group session counseling techniques is to have a bunch of drug addicts read "The Giving Tree" by Shel Silverstein. The tree kept giving and became a stump. The boy kept taking and was left empty and wanting more. When nothing was left of the tree, he finally acknowledged what it was...something he loved. Not a very good relationship brother. Love/drugs are so eerily similar that this applies to both scenarios.
Sidenote - sorry for all the "brother" statements in this post. I've been watching Lost like a mother trucker and I've been incorporating a little more Desmond in my vocabulary such as "What did one snowman say to the other? Smells like carrots brother."
