Did you find it hard to sell/justify your own promotions when you were asked to self-review ? In the past I've found management quick to dilute my accomplisment

Did you find it hard to sell/justify your own promotions when you were asked to self-review ? In the past I've found management quick to dilute my accomplisments as "Team" and pin my flaws as "Me"(maerf0x0). Been passed over for plenty of promotions in my day despite delivering value that just ticks away and does its job year after year, and rarely needs "firefighting" ...