Funny. Usually we hear from 20-somethings who think everyone on this board is "too old".
I was 36 when I got sober. Drank for 18 years non-stop, drank a lot while I was at it. Had withdrawal seizures, hospitalization, lost job and went broke - the whole 9 yards.
Been sober almost 4 years now. It's not easy the first year, but it's totally worth it. There are no shortcuts. If this was easy, everyone would do it. But it's not, that's why we all lament how difficult it was to push through those first few months. Sobriety WILL become the new normal for you. Eventually. Right now you are going to feel like the "new kid" in school every day you wake up for a while.
You are going to be learning how to live like a sober adult. You're smart, you can do it! Stay close and keep posting. Good luck.