My Mac laptop does not have enough storage to sync more than 51.57% of headers needed and i cannot access my bitcoin payment. I have tried creating space, trying to change data directory and importing my bitcoin core wallet online. The Bitcoin core app now closes immediately after opening due to my disk almost full.
Have you tried to reduce storage with pruning mode? https://bitcoin.org/en/full-node#reduce-storage
You could add storage ,flash drive or external hard drive and run Bitcoin core app from it instead.(after being installed on it)