dentist-I'm embarrassed to go

I had a lot of my bottom back teeth pulled years ago and cavities filled. Well I was just eating a hoagie and one of my back bottom teeth, that was fixed forever ago just cracked. So now I have to go to the dentist tomorrow and I'm just embarrassed. I know I should be going every 6 months but I get embarrassed. Any advice? He said I eventually need a couple implants but they are so expensive