Kurt, SJ and BR speak the truth my friend. When I was 23 I was terribly worried about whether I was making the right "career moves" to prepare for "adult life". (You tend to assume when you're young that one day you're going to wake up and suddenly be a serious grown-up, in full control of your destiny and with no more interest in youthful fun. Doesnt happen that way. You will feel the same way you feel now, 30 years from now. You'll just have more responsibilities.) So take the time to experience the world now...it will give you the edge in the long run, though it may not seem that way now. You'll learn first hand where real happiness stems from, and that will guide your motivations going forward.
I've lived life from all sides of the fence: I've done my time in the fast paced, high-paying corporate world, and I've lived in a van with nothing more than a dog and a guitar, having to play "I Know You Rider" 1000 times on the streets of NYC just to make enough gas money to get home. The secret is to make sure you experience both sides, then blend the two to just the right balance for your life. The corporate years helped us get a little shack on the beach, which is great, but the van years really taught me what living was about.... it's about the sunset, not the house. The more "stuff" you amass, the more you stress about maintaining it. THE HAPPIEST PEOPLE I know are not the richest--far from it. They are ones who have an open spirit, laugh and sing freely, trust in the universe/god enough to allow for spontenaity and uncertainy in their life, and really, actively love their friends and family. (remember: "love" is a verb. Think about that. That is how you create your legacy, ultimately. At your funeral, no one will be talking about the deal you landed, or the case you won. They'll talk about how much you made them smile.)
You learn this stuff through experience (if you're lucky enough to learn it in your life.)
That said, your chosen field is a great one. We need folks like you more than ever. but if you're not driven to start right away, no worries, you won't be too old to start a few years from now...or even 20 years from now! good luck, whatever you decide.