The right people do not require you to become smaller so the relationship can remain balanced.

Some relationships stay balanced only by you contracting: talking about your work less, holding back what you are pleased about, downplaying what you are good at. That balance is real and it is being maintained entirely at your expense. Good relationships adjust to your size rather than requiring you to fit theirs. You should not have to be less in order to be tolerable.

Notice where you edit yourself before speaking and what you are editing out. Try saying one of those things plainly and see how it is received. The response tells you a great deal about what the relationship can actually accommodate.