what should i tell my orthodontics?

[thenext_chad]

i have a decent maxilla however my mandible isnt as grown, like everyother orthodontic scammer he will push my mandible a bit forward and my maxilla back thinking i wont notice which probably will be hard to.
so what appliances can help me do this?
how can i make sure he wont scam me?(im 15yo turning 16yo in novemeber)
id like any form of help

 

[thenext_chad]

title.

 

[bigchibber]

whats your bite like

 

[Rea]

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[thenext_chad]

whats your bite like

healthy bite and al of my teeths are perfectly straight besides my lower 2 central incisors are slightly pushed back