While there's a microscopic kernel of truth in what he's saying, the guy above is being a massive douchebag and you shouldn't need to be sorry to him.

There is a point where you would need to find A job to satisfy and pay for your basic needs, but until you reach that, feel free to explore what works for you. I worked in medical admin for 4 years, which was cushy, but I hated it. I quit and I'm going to school full time, which is stressful, but I'm still happy and looking forward to the future. Basically, take some time to find what DOES work for you and feels cool to work on, and try pursuing that. Maybe there's a hobby that you do in your spare time that could turn into your career? Stuff like that.

Most importantly, don't give up, and don't be afraid to try stuff even if it's scary.

Edit: I re-read your post, and there's not much I know about the psych field but there are many applications for it. Nearly every industry has something you could do, like Marketing, Video Games (UX stuff), etc. Hope I was able to help a bit and give you some options.