The cure is good weather in spring with lots of migrants about. I'm probably no more than 5 miles from Hermitage Green at the moment, and the weather today is enough to make you give up everything.
But I don't know why you need to be so dramatic as to give up birding. You make it sound like a job. I have spells when I do it more, and others when I do it less. Just concentrate on other things for a while. As somebody else said, it's not just about birding when I step out of the door, it's about going for a walk in the countryside, perhaps going for a cycle ride, seeing new places, taking photographs, experiencing the culture of a place. I couldn't give up birding because for me I very rarely go exclusively birding. Birds are just part of the tapestry.
Local patch birding can be good, because some birds which you consider common now, will suddenly become rarities at your patch. For the first couple of years you'll be going out full of anticipation, because you'll be regularly adding new birds to your patch list. Highly recommended.
Personally I don't see how anybody can "give up" birding, because it's so ingrained in me that I'm always birding, whether I'm in the field, at the office, shopping, at the match or in the pub. I even occasionally hear geese fly over when I'm in bed at night, and even then I'm identifying them from their calls. I'd have to completely change the person I am to stop birding. I don't think I could do it for a day.
So I'd say, don't announce that you're giving up, just look for new interests, take up a few new hobbies, and every now and then go back to birding, and see how it goes.