Hi Jessica,
The formal diagnosis of Gender Dysphoria is for a persistent discomfort with your birth sex, and it seems you fit this description. I find it helps to understand what is happening. It is generally accepted that we are born with gender identity incongruent with our birth sex, and this is hard wired into our brains for life. There have been many different strategies to treat this, and all but one has failed. The only effective and long term way to reduce dysphoria is to affirm our gender identity.
We often don't recognise our discomfort as being from incongruent gender, and go through life blaming things like relationships, job pressures, and even governments for our frustrations. Being very busy also hides dysphoria, and as we get older, we slow up and become more aware of our dysphoria. It is also common for it to increase as we get older, and this may be related to falling hormone levels.
If we try to ignore dysphoria, the chronic stress can impact our health severely, and lead to life threatening conditions, so it is important we reduce our dysphoria. Affirming our gender need not involve total transition, but can be anything that makes us feel more aligned, and this includes dressing, having an online identity, or adopting typical activities aligned with our gender.
It may be the case where you adopt affirming activities which help for a while, but then just work forever. This is the time you need to consider transion, but of course this is a huge decision to be balanced with your other life priorities. Transition has shown to be the only long term solution to align your body with your gender identity, but it can create other challenges in your life.
So, in answer to your initial question, No, it never goes away on its own, but you can reduce it to negligible with appropriate actions. Please don't try to just put up with it as it can make you sick, and good luck finding temporary or permanent peace!
Hugs,
Allie