You've had to be strong for so long that feeling your feelings took a back seat because:
Ain't nobody got time for that.
And everyone is depending on you to be ok, so breaking down is not an option.
But suppressing your feelings for so long left you depressed, angry, and irritable.
You realize now that you need to feel and process your emotions, but you've been carrying this weight for so long that there's too much to unpack and you aren't sure where to start.