How do yall get pregnant with insulin resistance?

I don’t have PCOS, and I do ovulate around cd 17 every month (cycles are 30-31 days long).

I read that high insulin can interfere implantation so maybe that is issue. I find out about IR 2 months ago from glucose blood test, I am overweight for my whole life, had first child without problem with ttc or pregnancy.

We been trying for year an a half for our second baby, year ago I had chemical loss, after that nothing.

I am on metformin 1000 mg a day for almost two monts now, also taking myo isonitol, vitamin d, magnesium, folic acid and omega 3 supplements.

I changed my diet for better and started to work out and I already lost some pounds.

What now? Continue with all those things and wait for pregnancy? Or there is something more that I can do?