If someone gets uncomfortable every time you grow, they liked you better when you fit in their pocket.

Some people are attached to the version of you that was convenient for them. When you improve, they are reacting less to the change than to what it does to the arrangement, where your smallness was doing quiet work for them. The discomfort is real, and it is information about the setup rather than about you.

Notice who gets warmer and who gets strange when you do well. You do not have to cut anybody off over one reaction, but do not shrink to restore the old balance either. People who are actually for you adjust, sometimes slowly, and they get there.