I want to say I don't think worrying about faking is something anyone really needs to worry about. The only people I've heard tell people they were faking is truscums (they've told me that for being NonBinary). IMO identification is valid, if you identify as trans it's enough, if you don't that's also valid, there's no minimum criteria you need to meet to be valid in your identity.
Stop thinking about it in a binary sense. Nobody's totally straight or totally gay. Nobody's totally masculine or totally feminine. Nobody's totally cis or totally trans. You're an individual, and if the recipe of these ingredients that makes you up makes you feel more one way than another, then it's true by your own definition, which is the only one that matters.
Others may think and say that you aren't far enough in the spectrum to qualify for whatever label, but how much these opinions matter to you is in your control. It may still bother you, that is difficult to escape, but you can at least choose not to let it define you.
Alt answer: If you need LEASE HELP, you should probably contact a lawyer in your local jurisdiction.
If you think you might be trans and are worried that you are faking it. You probably arnt faking it. People don't unintentionally fake being trans.
Besides, there is nothing wrong with thinking you are trans and changing when you find a new label which you feel is more accurate. What's important is that you feel comfortable with your decision. No one will persecute for thinking you are trans and changing your mind.
If the answer to that question is not a very easy "absolutely not" then you probably are.
If the answer to that question is a very easy "absolutely not" the result is indeterminate.