Echoing the wisdom of these previous replies, I point out that indeed, "Change is the only constant." To a very large degree, your query depends upon where you are when you begin to journey... For many of us, DMT only validates the perceptions we had already grown into up to that point - with the DMT worldview matching our own, by and large. But, in general, keep in mind that all things (ie. you) are subject to change. The unevolved person may resist a change in identity out of fear... But this resistance doesn't excuse one from self-change, it just creates denial, delusion, and entropic stress. You will change regardless of DMT interaction, and so will your ideas, perceptions, and choices... The question is not will you change, but will you grow and heal?
My advice is not to concern yourself specifically with a change in perception or worldview per se, but to seek wisdom around how and why you suffer, stress, or otherwise resist happiness, peace, and love. Seek your own health and happiness, so that you may be contagious. Persisting in that curiosity will lead to the discovery of true wisdom, which as changes of self go, happens to be practical, grounding, and useful for yourself, your relationships, and the world.
Salud!