Should i go back to my ex?

you can't see the world and be with her? if being with her limits your growth, then no, don't be with her. people should be able to grow together. you're a young man...and unlike the average young woman, you aren't wired to want to settle down, you want to evolve and explore and learn new things that will lead to the maturity and sense of self necessary to make a commitment to another human being. if she is around the same age, she should do the same; if you can't do these things together with an open and active mind, then continue your time apart. if the love is that great, you'll make your way back together.