Blender crashing when making edits and freezing when animating

whenever i add more teeth to my sea serpent thing blender crashes and when i try to pose it in animation mode it freezes. i have about 2 million faces maybe that’s what’s causing it?

Yeah that would do it, probably. How much RAM do you have?

i believe either 12 or 16 gb idk if thats a lot or not because i got this pc for vr and recently started to get into modeling without really looking into specs. birthday is in 10 days should i ask for some ram lol?