Hi There,
I will start off saying, im new to unreal, but i am struggling with how to make a particle system my playable character…
If theres a tutorial out there on how to do this it will be helpful thanks 
You dont. Particle systems are visual thing, they cannot interact with game much besides some graphics effects.
Also you do not make emulation of living particle, you are making game. So one hint: does it matter if your pawn is particle, or its small invisible ball with particle emitter on it?
Ahh
Thankyou for the hint