So i have been told that the first derivative of a position function x(t) with respect to time gives me the instantaneous velocity, but i also encountered other material online which stated that the derivative of displacement with respect to time is also instantaneous velocity. Now this kind of confuses me, i see how the rate at which your position is changing gives velocity, but how can that be true for displacement as well if displacement itself is a change in position?
Displacement and position are just two words for the same thing, at least in this context. Displacement is a change in position, but position (or "location" or "coordinates", etc.) is just a change in position relative to some arbitrarily defined origin.
As @Emil said in the comments, the words people use to define physical quantities can vary quite a bit from one source to another.