I just want to finish the temple quest ;_;

Help? Run the temple. Build a path, build multiple possible paths so you can progress more often towards it with less risk of it destabilizing.

If you only have 1 route towards it, that route will be the rooms you lose. So add more rooms, and take 3 steps forward and 1 step back every run. Eventually you will get there.

That’s genuinely about the only thing you can do, is run it and progress. Just don’t try to get there with 1 route or it will be the only option of rooms to be removed.

Killing the Architect will remove 2/3 of rooms if you don't have a snake and locking the first tile. If you just want to finish the quest. Kill him once and place the special Queen room. Then don't connect or kill Architect again.

Destabilization will be 1 or 2 rooms normally so even without lock you can still connect enough rooms towards both the Special and real Queen chamber on the far side. Then once you do, run through the special room then to the actual Queen chamber and you are done.

The "temple quest" as in kill the Architect at high level and then Atziri? It is exponentially easier than building a snake and you are probably looking at guides on how to build a snake.

For your purpose, you just want to clear many high tier maps fast, open the temple every time you can, create a path to the Architect and keep killing him. Repeat until he spawns the key room. Then you create a path to Atziri and the key room. You can almost ignore rooms' placement optimizations, just leave a route in the central isle and put rooms on the side.

If you are a noob it might take you many hours to do that, this game tends to be grindy.

the access room is on the left why are you going right?

You'll get there. Just keep slowly building a path over to the left side and don't kill the architect every run, as that causes way more rooms to get deleted.

Idk if you're at maps yet, but t15 maps with 6 mods always (to my knowlege) give 2 crystals, so you can do a temple run every 3 maps.