2.2lb is progress. And shows that progress can be made even with outbreaks of cake etc.
BUT there will always be things happening: Christmas season approacheth!
It helps if, as @Handsoffstrikesagain says, you set up some habits that are easy enough to embed. Just makes it easier, less pressure, less thinking of misery and more a new healthy way of eating.
I did a long slow loss, mostly at about 5lbs a month, really worth it.
I have a regular menu of breakfasts that see me through til lunch (not high calorie, incl complex carbs / fibre and protein) , a regular menu of lunches (same principle) and exert portion control at dinner. Add extra veg, go very easy on the carbs and high fat.
Then actually enjoy a slice of birthday cake and don’t see it as a ‘failure’, but don’t casually eat stuff you don’t even really like.
You’ve made a great start, picture 5 blocks of butter: that is the weight you have lost!