Toenail fungus?

I've had issues with athlete's foot for years and now finally talking to a doctor about it. I think it's now affecting my nails. They're thick, kinda discolored, and super ridged. Called beau's lines? Is there anything I can do to completely cure this on my own?

I've had issues with athlete's foot for years and now finally talking to a doctor about it. I think it's now affecting my nails. They're thick, kinda discolored, and super ridged. Called beau's lines? Is there anything I can do to completely cure this on my own?