MCS-150 Renewal

I opened my own authority at the end of February 2020. Someone else did it for me.
The DOT number assigned ends with 1, so even though it's less than a year, I am due this January for renewal. No two years were given to us to do the renewal.
I'm on my way to renew the MCS-150 form, but I have never done it before.
Is it easy to do online? What are some things that a new person who never has done it might have any problem filling in?
Does it only verify your address, phone number, etc.? Anything else I need to know in advance to prepare?

I believe there are no fees to do it yourself.

 

Thank you, Rideandrepair.
I printed my quarterly reports filed just to see how the whole year looked. I might need that as well for the IRP renewal coming in two months.

 

It's asking for a NEW ENTRANT EXIT date. It shows only the NEW ENTRANT ENTRY DATE. Do I leave it empty as I found it?
Also, do I need to add my SS in addition to EIN#? The SS# area is highlighted in yellow. So, I don't know if I need to fill in or not. I found that area empty when doing renewal. I did add my fax number to the list and my wife as a secretary when listing officers.

 

Thank you for a quick reply!

 

Okay,
the person filling originally picked only interstate over 100 miles.
But I am not restricted to only that. What about interstate less than 100 miles or intrastate miles.
Do I mark these off as well from the list?

UPDATE: I didn't play with those. I left it out. My update is completed. YAY!