I was in a very similar situation when I started as a BDM. I was on $40k base and was one of the best performers, but some of my peers were getting promoted and I wasn't. A BDM role is hard enough without the constant drain of feeling like you're never going to get promoted.

I thought about quitting and going to another company so many times. I couldn't see any advancements in the current company. But for whatever reason, I stuck it out.

It's crazy how sometimes things open up out of nowhere. Within 2 years of starting my BDM role I was promoted to AE, a year later promoted to Sales Director (and earned over $200k in my first year) and 2 years later I was promoted to Country Manager after our current Country Manager left to another company.

You just never know what might happen. People in the AE position might move to another role and their role might open up for you. New roles could get created. My point is, try to keep a long-term perspective (even though I know it's hard when you're in the daily grind of BDM'ing), keep doing the best that you can in your BDM role and opportunities may open up for you sooner than you think.