Either wrong size, gait or your heel is pronounced.

Try different sizes as others described otherwise you can buy stickers you put on the inside.

Or buy shoes with leather counters.

I had to read that link to learn what a counter is.

It might be that your foot heel is unusually prominent. I’d be trying a gel cushion or pad on the inside of the shoe, which you could replace if worn out.

I also wear through the inside fabric quite fast but I also wear my soesea little bit on the loose side. Maybe try a different size or cut?

Huh, fascinating. I’ve never worn through that part of a shoe in my life. I do always wear down the tip of the right heel so it’s uneven, but it 100 due to my gait.

That happens to me with padded structural sneakers. I switched to shoes that aren’t structural (Nike Flyknit, Merrell vaporglove) so the soft fabric of the shoe moves with my foot and hasn’t happened since.

The leather counter in dress shoes also seems to be more durable as others have said.

Get a shoe horn?