If you insist on recording yourself, then send someone else to mix it. Keep the files around to dick with maybe, but for God's sake, you'll be MUCH happier in the long run if you get someone else to mix and master it. The thing about mixing in the digital age is that any old schmuck can mix it. Send it off, bit the bullet, pay for it, and then spend the downtime learning how to make it better. I was the same way you are, "it'll just be cheaper if I do it!" I've currently spent over $1000 on gear, I'm sure, and my GAS list extends to the moon. It isn't cheaper. But it is sure as hell fun. Even further, you know what my first project sounded like? Complete and total butt. My second? A lesser amount of butt. Only a year of constant mixing later have I reached a point where I'm alright.