I've generally found quite a lot of success at abandoning goals / "destinations" for most things, and focusing on the "journey": don't aim to "be fit" or reach a specific weight. aim to "do one more thing" to make progress along a direction.
every step in that direction is success, every bit is something you weren't doing before and is something to be happy about. it doesn't have to be big at all - have you done one push-up today? do one. it doesn't matter if the answer was yes or no, adding one is one more than before and is achieving what you want, and it eventually adds up.
the nice part about this kind of mindset is that there's no end when you stop, and no failure when you miss a day. there's just a new ever-changing normal, always leaning where you want it.
every step in that direction is success, every bit is something you weren't doing before and is something to be happy about. it doesn't have to be big at all - have you done one push-up today? do one. it doesn't matter if the answer was yes or no, adding one is one more than before and is achieving what you want, and it eventually adds up.
the nice part about this kind of mindset is that there's no end when you stop, and no failure when you miss a day. there's just a new ever-changing normal, always leaning where you want it.