Plateau from loss of motivation

I had about a 15 pound weight loss over two months, then about three weeks of maintenance. The first week of maintenance was intentional. Then a couple more weeks of not great habits unintentionally began (less exercise, more eating out, tracking but usually at the end of the day).

I don't mind having an intentional plateau like the first week was. But as it's become longer because I've lost motivation, I'm worried it will slide into weight gain again.

Any tips to regain motivation after a time of no weight loss? I want to be proactive. I've thought about the good changes in me that have already happened. I appreciate the weight I've lost. I'm glad I haven't really gained weight over the last three weeks and I have some insight on maintence calories for me. But I don't really have a drive to try. I think the easiest thing is for me to try a minor change that will result in weight loss even if I'm not motivated yet (like just getting back in the habit of recording what I eat as I eat instead of waiting until the end of the day).

I'm wondering if that may work (small changes even when I'm not motivated), or maybe a new blog or book or something. Unfortunately due to my schedule, a lot of exercising will be cut out for the next few weeks. But I can start back exercising by November on a regular basis.