If your character concept is “complete” before choosing your class, consider being a human. Other choices carry along more “baggage” that may distract from what you’re shooting for.
Other players can be like “What kind of elf would…?” etc., but they don’t do that for humans.
This can happen with new players who are native English speakers too, as D&D has a fair deal of vocabulary not everyone knows. Words like charisma and melee really got popularized by D&D.
Deep cut here: When I was a kid (ages past) and first heard friends talk about D&D, I thought there was a lens to keep you on the border. And without it, you might go straight Into The Unknown.