Activity Level: Lightly Active or Active?

I have been thinking about asking this question for awhile but haven't yet because I feel like it's a no-brainer. However, I do want to see what people do and what would be recommended for me so that I'm using the right settings.

Here is my activity:
I work 7.5 hour shifts 3 days per week
1 day I work 2.5 hours and then later I work 4 hours

I typically stand for at least half of those shifts interpreting video phone calls in sign language, so I am moving somewhat but not anything physically demanding.

I choose to stand up when that standing station is available, which is most of the time.
I have 10 or 20 minute breaks every hour or so where I walk around in the office for water/bathroom break/food or just sitting.
I also sometimes alternate sitting and standing something like 60:15 or 45:10 but I stand most of the time. I also alternate resting my feet on a stool. (this is probably too much info but thought I would include as much detail as I could)

I normally go to the gym for about 2 hours Monday's, Wednesday's, Thurday's, and usually on Friday's and Saturday's too ( I take a couple days off because the program I follow has 2 rest days normally). I also go on Tuesday's normally for around 1.5 hours.
I follow a weight-lifting program from BodySpace that works the entire body throughout the week and I try to lift heavy to failure for 2-3 sets, reps vary depending on what I'm doing and how heavy but range anywhere from 4-15 and maybe 10 different exercises depending on what it is (e.g. I can't lift very heavy for shoulders and my entire upper body is much weaker than my lower body) in addition to 15-30 minutes of cardio of various kinds on those days normally.

Other than that, I don't do too much; I lounge about at home or stand to prepare meals or hang out with friends, walk around sometimes and other everyday activities.

If I'm hitting the gym regularly at 4-6 days per week plus standing, I put active. If I don't make it to the gym more than 3 days and/or don't get the chance to stand at work, I should probably move it back to light activity, no?
If I don't work out one day, should I change it to "light activity" and eat less or does it matter?

I feel like I'm being a bit anal-retentive here but I don't want to be eating too much and stall progress which I feel might be the case.

Thanks so much in advance for any kind advice or input.