Hi, I'm curious on your experiences when it comes to transits to progressive planets. E.g. my progressive moon will be at 0 degree on the 17th of May in the t-square with mars, jupiter and pluto. I'm not that worried...perhaps I should be? Would be thankful for your thoughts.
Welcome, Amanda A. The transits do play. I'm in a similar situation:
https://elsaelsa.com/astrology/pluto-transit-progressed-jupiter-venus-mercury/
As for your situation, you will FEEL (moon) this energy, but maybe nothing more.
I am buzzing like a struck tuning fork, and there is a lot going on around me, but me, myself; I'm doing very well. 
@elsa Thanks! Would you say that it's a bit like a "normal" transit to a planet or does it differ? Also - would anyone have any example of a transit to a progressive planet? (I can give one perhaps after the 17th of May... 😆 )
This transit is already being felt. You feel (moon) something, perhaps, unnerved (Pluto). You're acting or asserting yourself (Mars), seeking perspective (Jupiter).
Your other question - I don't know. It's subjective, I think.