i used to get called names when i was younger

i went to the dentist last Tuesday for a routine check up and clean and finally plucked up the courage and asked my dentist about getting my mouth sorted. My dentist has down on my records that i have got a category 2 overbite and a category 2 overjet and has referred me through to an orthodontist. As i was never offered treatment when i was younger i may be able to get treatment on the NHS (i live in the UK) i may have to wait up to 12 weeks before i get my first appointment which is a pain but ive waited this long so i think i can wait a bit longer.
Ive got to admit that im not sure if i would like to have metal braces on my top teeth as they will always be on show and i feel self conscious enough as my teeth are. The ceramic ones dont look to bad though, and i would be interested in the lingual braces as well but i may have to go private to get those as im guessing they are more expensive.
I hope i dont have to wait twelve weeks as i really want to get started with any treatment i may need.
If any one has got any advice on what i need to ask my ortho when i do get my appointment and if anyone has any info on different types of braces i would really appreciate it
xx