Buried Treasure is so far and the map is so weird

Okay I'm tired. I took a buried treasure map and I'm following the treasure for 14,000 blocks, and I haven't even been able to explore a single pixel of the map. I've been walking for 40 minutes without stopping, and I don't find the treasure, the locator map is strange, I just go up and down, never towards the direction of the buried treasure (which is on the side), I can never get there and I'm already tired of walking. Please fix this.