Hey, I went through a similar experience after being with my Master for coming up on two years. I felt like I dedicated a lot to him (with plenty in return) but needed some more time to deal with me.
Without knowing what you are into, try going to the BDSM library and sorting through highest rated and just browse.
I got back in touch with myself by doing things for me, I'm naturally domestic so I cooked some new recipes I've been dying to try, worked on some arts and crafts I'd been neglecting went out with my girlfriends, shopping, whatever I felt like doing at the time. The most important thing for me though was masturbation, no toys, no porn, just me. It allowed my mind to wander and allowed me to re-evaluate what turns me on.
You don't have to ditch your boyfriend entirely, just set aside time for yourself. Make a schedule if you have to, because it's important you maintain your own identity in a relationship. Your identity is why he became interested in you in the first place and strengthening who you are can only help your relationship.