eh I wank to porn it dosent seem to effect me at all and I tend to be very sensitive to energies, I think its mostly the dependence aspect that makes porn bad much like all dependency habits like drug taking or social media, moderation is key, as for EMF it will have basically no effect, the real issue would be living in a big city as they tend to be whirlpools of shitty emotional energy, but even that can be dealt with if you continue to advance.
Your aura is probably weak because your new, if anything take this as a good sign that your not delusional and you understand your current limitations, honestly it seems like you have some psychological hang ups regarding masturbation if masutrbing even with porn causes you depression and anxiety, a big step in your progress will be overcoming that, going porn free is likely very superior to using porn, but under no circumstance does it cause that kind of backlash its simply too extreme a response.
This is assuming your using normal porn and not some weird depraved stuff like interracial or whatever.
FYI I am not saying use porn or whatever just that based off your response it seems that the problem is more likely a sexual hangup which is something that does need to be dealt with going forward, sex magic is extremely powerful and you need to be able to use it without shame or your going to find yourself spinning your wheels at certain stages of advancement.