No trips added. If you haven’t left the U.S., you’re done.
How USCIS decides when you can file
Your green card date, minus 90 days
Most permanent residents can apply 5 years after the date on their green card. If you’ve been married to and living with a U.S. citizen for 3 years, and they’ve been a citizen that whole time, it’s 3 years.
USCIS lets you file up to 90 days before that date. If you file earlier, USCIS will deny the application.
Continuous residence: long trips
A trip of more than 180 days but less than a year is presumed to break your continuous residence. You can overcome that with proof you kept your life here, like your job, your home and U.S. tax returns.
A trip of a year or more breaks it. On the 5-year path you can apply again 4 years and 1 day after you came back. On the 3-year path it’s 2 years and 1 day.
Physical presence: at least half the time
You need at least 913 days in the U.S. in the 5 years before you file, or 548 days in the 3 years if you file through marriage. USCIS counts the day you leave and the day you come back as days in the U.S.
The other requirements
You must be 18 or older and have lived for at least 3 months in the state or USCIS district where you apply. You also need good moral character and must pass the English and civics tests at your interview.