Sounds like you don't really need help. If you are already agnostic/atheist, and are thinking critically for yourself, you will eventually arrive at a position with which you are happy.

just acknowledge what you believe, you can't ask anyone else what you believe or question what you should believe. You either believe in something or you don't so just acknowledge your belief. It's ok to do so.

Don't get on a boat with animals and budhists.

Doesn't seem like you need actual help so much as you coule use support and like minded friends. You might look at meetup.com and search for local atheist social groups in your area. Finding local friends, is always a good thing.

There are also Athesit/agnostic groups on Facebook.

On this site, if you click the "Members" tab and then click on the "Nearby" tab n the fr right you can find the people o this site who live closest to you. The membership on this site is still pretty small though, although it is growing. You can help it grow by positing links on social media. (You can get activity points for doing so.) Click on your profile. To the right Slick on the Star with the number in the middle. You will get a page which shows how to earn activity points and also hows how many you earned for what activities. About two thirds down the left column, click on the word "Share" and you get instructions on how to share links and get activity points for doing so.

Do they know you're atheist? I would say you need to follow logic and reason, but also accept the fact that mom and dad will probably never understand it, and will continue to be religious.