Recently, there's been more recognition that both cis and trans people experience diffences in "gender valence", that is, how strongly aware we are of a gender identity.
It's a spectrum from no gender valence (agender people) to strong gender valence, where the person knows without a doubt that they are a woman, a man, nonbinary, or whatever their gender identity is.
This spectrum is not corrolated to whether you're cis or trans.
A cis person might have a weak sense of gender identity, but be perfectly willing to accept the gender assigned to them at birth. Or they might be very sure of their gender identity.
The same is true for trans people. We might be unable to say what our gender identity is and just know what we're not. Or we might have a strong sense of what we are.
You get to decide what you are. You might change over time, you might always feel uncertain. No one else can tell you what you "really" are. Move towards what gives you joy.