I feel like a slacker

So...I have a job and while it does not consume my whole day and stress me out, there are things that stress me and make me not want to work there anymore. *sigh* I mean I do my work, I get things done, I collect my check, but I am not satisfied, nor do I feel like I am doing a good job. Not because I am constantly not doing work, but because every so often a co-worker will bring up something in how I handle my contracts that makes me feel like I am not as good as he is. The issue today was travel. I WANT to go on a trip or six and visit my clients and waste time away from the office and rack up frequent flyer miles...the American dream, right? However my approach has not opened the door for those opportunities...I am not aggressive enough or whatever. I still get my work done. I chill at work basically. I have time to surf, chat online, talk an the phone and with others...and take long lunches, etc. It's cool. I want more. I want another job. Anyways, I feel like a slacker because of one fault being pointed out...I feel like my job is on the line and that I'm not doing what I need to do, even though I am. I spoke with my mom about it...and my best friend. I am going to be more aggressive...and I am going to make up a trip and go kick it. Have a short meeting and then hang out in Dallas or Cuero... somewhere. If they want to spend money then I'll do my best to spend it. I have not been opposed to going somewhere...I just have not put that major effort into doing it. There's other stuff, but I just had to get that out. Now I can talk about other stuff on my mind.