is it worth repairing my gpu?

So I have this Rx 570, whenever I try to connect display to it, I start to see glitches on screen then screen goes black for few seconds and eventually it completely goes black after some time.

The issue doesn’t seem to be originating from any other component as I have tried replacing components and also put it in a new PC to test it.

So coming to the question, is it worth trying to repair it mind you that this is my secondary pc which I only use on weekends.

and what would be the cost of repairing it?