@Anonymous
But the bridge turns out all glitchy. I assume this is because there are way more vertices in my outer loop than my inner loop. So what should I do now?
You assume correctly. Bridge is designed for bridging across equal numbers of edges or polygons and as you have seen, will create a real (unusable) mess across different topology. Regarding, what you should do next, it depends on your objectives. If you are trying to create an animatable character with facial morphs then you need to start with correct topology to begin with, which you currently do not have for either part of the mesh. So frankly I would start over with creating a proper character head which I think will wind up taking less time then retopologizing your current mesh. See the below link as a starting point for videos/tutorials concerning how to create proper topology for a character head.
https://www.google.com/search?sxsrf=ALeKk03l4N_lgX4kYC1sDJSuWmyjJUQxlw%3A1594605227546&ei=q74LX4T7IMjj_AbG2YAg&q=correct+topology+for+a+character+head+3ds+max&oq=correct+topology+for+a+character+head+3ds+max&gs_lcp=CgZwc3ktYWIQAzIFCCEQqwI6BwgAEEcQsAM6BQghEKABOggIIRAWEB0QHlDbc1jphQFgtKUBaAFwAHgAgAFsiAGeBZIBAzcuMZgBAKABAaoBB2d3cy13aXo&sclient=psy-ab&ved=0ahUKEwjE_JOxj8nqAhXIMd8KHcYsAAQQ4dUDCAw&uact=5
If you want to try to salvage your current head by retopologizing it you can do so with the topology tools in the freeform section of the Polygon modeling ribbon (see link below).
https://www.google.com/search?q=3ds+max+retopology+tools&oq=3ds+max+retopology+tools&aqs=chrome..69i57.9511j0j8&sourceid=chrome&ie=UTF-8
While it is worth learning how to retopologize, it is far more important in my opinion that you first learn what proper topology is and how to create it from scratch or your retopology efforts will also not be correct.
Sorry if I am telling you something you don't want to hear, but in the long run I think it will save you pain and give you much better results with a more efficient and enjoyable workflow.