Building a closet

First if you are planning on selling your house in the future, make the closet temporary, as losing a bedroom does devalue the house.

That said, you could get pipe and drill a hole on each end and get ceiling mount brackets, but you will have to install them into the ceiling joists, no anchor can handle the weight of all those clothes. https://www.amazon.com/Umbra-Ceiling-Mount-Bracket-Drapery-Nickel/dp/B004CM9PHQ

So get a stud finder or try this totally cool hack.... https://www.youtube.com/watch?v=trc0zFQzBZ0

Predrill holes for screws using a very fine bit and tape it off how deep to go based on your screw.... make that screw long enough cause its going to be holding a lot of weight. Same holds true if your screwing mounts on the wall for rods.

Do not attach loads to your ceiling unless competently analyzed. Likely you cannot exceed floor-rated loads for closet contents...

You can nail a board into the joists above and then hang the rods from the board.

I turned a 12 x 12' bedroom into a walkin closet but I hung the rods from the walls in studs. I also used free standing shelves and shoe racks. Best thing I ever did!

Rods full of clothes are very heavy. Do not hang from the ceiling. That is asking for trouble. Closet systems have cabinets that will suoort clothing rods, and you can use the drawers in the cabinets for lingerie, etc. Ther are a number of systems available, at home centers, Ikea, online, or custom. If you are doing this on a shoestring, just buy some free standing garment racks or wardrobes.