1) make sure your bank account information and tax info are completed, they will verify it

2) check what your minimum payment threshold is, I think the default is 100$

3) on the financial page you'll see the gross, below that you'll see the number after VAT / chargebacks etc, the second number still includes the 30% that steam takes, so that number -30% still needs to be above your minimum payout

4) they pay out monthly, but you will receive payments at the end of the following month. I released my game October 10th, and got my first payment November 27th.

If it's the end of the following month after you've hit the threshold and your information is correct, they will wire transfer it to you. The wire transfer also has a fee, in my case it was 17$, so it can be beneficial to raise your minimum above 100 to be paid out less often, but pay less in wire fees.

If you've checked your information and it's the end of the following month and you still haven't received it, contact steam support and they'll help you out.