Can you up your dosage occasionally?

I’m currently on 0.5 mg now for maintenance at this point however I’m a tad bummed that my appetite has come back ALOT more than I was hoping (not the worst thing but I liked that it helped). I have a 1mg shot left-can I use it still especially if this last week I feel like my appetite has been up? And then drop back down to the 0.5 mg the following week again. I hate wasting pens anyways but didn’t know if people actually do this?