Is Constant Attention to Personal Growth a Good thing or Obsessive?

My best friend has changed considerably over the past few months. Since we left home he has become obsessed by the idea of being better. What's wrong with this? Well nothing, but it's gotten to a point where he's a different person, and he's lost his identity to me. He's almost a robot that forgets emotion and whose prime objective is just to slave away at being the ideal version of success. Hes put aside his career ambitions in order to become a millionaire quick, and earning more so that he can live more comfortable in the future. There is nothing wrong with any of this except for the fact he's very one note now, and he views me as "lower" for not put aside my studies to work constantly, and listening to self help audio tapes every day. He's just not the person I became friends with, and his self righteous attitude doesn't help the frustration that rolls over me. I'm not trying to disparage his new way of living, and im not going to say he's just wrong, but I'm just in a weird position that I don't know how to deal with. He's so driven on being perfect on a social, financial, and religious level that he comes across to me as self obsessed, fake, and unemotional.

I'm all for growth, but after growing up early I decided to at least enjoy what's left of my youth and try to get the most out of my college years, but he breathes down my back and passively critiques my "lack of drive" or perceives me as wasting my free time. I'm already trying to pave my way, and it doesn't help that I'm being told I'm doing it wrong. He's seeing the benefits and not living his life to the fullest, everything is an attempt to reach these impractical levels of perfection. I want to grow, any sensible person does, but I don't want to lose my identity and force every waking minute toward the pursuit of trying to be ideal for everyone else.

Do you think I'm insane, and he's completely right, or do you think he's taking this way overboard?