Progressed charts are read with reference to Natal along with transits. Alone it is of no use.
That might be reasons, you are not getting responses.
Yes... that is one way of doing it.
There are other ways that use the charts by themselves, as representative of challenges---provided they are used only as return charts. The means that the progressed chart is brought up only once a year at the exact time and day of the birth: a Progressed return chart.
I actually prefer Tertiary and Minor Progressed Return charts since they measure respectively, emotional and mental, challenges at the present time.
Another reason is that lots of people don't know how to use progressions, and those that do like to do the charts on their own software. Since you have not provided complete birth data, they simply ignore it. I used to ask for the data, but I got tired of endlessly asking for complete data, and
NOW I simply ignore any poster who won't provide it and let the beginners do it.