New to ttc

Hello, I am very new to ttc, any advice is appreciated :) I have a few questions.

1) when is the best time to have sex? Is it every day or every other day?

2) how do I check my cervix and cm? Is cm the same as discharge? What does it feel like?

3) do I need an ovulation kit? Or have people succesfully got pregnant without these?

And any other advice is welcome :)

Thank you xx