I'm 20 years old and have been with my current partner for 3 years. He is strictly monogamous and I think " I'm recently coming into my identity as bisexual as well and have been really wishing I could it explore it more. It's not that I don't love my partner and cherish the way our relationship is, it's just that I wish I could explore other relationships as well.
Do you have any advice?
Seems you answered your own questions. "I may be more of a polyamorous type of person. I've been feeling for awhile now like I'm missing out on the chance to date and be intimate with other people, especially being so young."
Yes, youth is a time to explore many things before we settle down into long term agreements such sexual monogamy, marriage and family. If we were honest about it, monogamy is really the practice of "serial monogamy" given our current divorce rate. So I'd say play safe and find out what pleases you the most. If not now, when? Even if it means breaking up with your current BF, now is the time to find out who your are as a sexual person. I'd say go for it.