I'm in my late twenties as well (5 months sober) and what did it for me is I knew in my head I had to break myself out of this cycle. You can wait, continue drinking, and wait for that day where you feel you're not so much in your "prime" anymore, but who knows what damage could be done by then. You have the opportunity now to change your life for the better. Grab ahold of yourself and actively pursue your goals without this weight weighing you down. If you quit drinking, things will change, sometimes it will be difficult, but I honestly feel (from my own experience) that's it never a decision you're going to regret.