Should I call off engagement?

[TalliaBeautyx]

I've been dating my boyfriend for four years and we've been engaged for two months but I find myself stuck in a rut and I don't like it. We live together and we don't go out that often. I've only ever had one boyfriend before him and I feel like I wanna live my life a little bit more before I settle down and get married. I'm 22 and he's 23. I still love him, he's a great person but I can't help but dread the future as it doesn't seem very exciting. My single friends go out all the time and they can sleep with whoever they want, whatever. I'm a little jealous. Should I dump my perfectly fine fiancé or just get married? Help!