You've only been playing a month and you're 67 maining a DPS job. I think you're doing just fine.

Try to keep in mind that fresh content comes out every 3-ish months, so you will get there, and before you even know it. Just keep in mind that you're experiencing the grind, and you'd be a unicorn if you weren't feeling it. That being said, you will find progressing through the MSQ to be faster as a healer or tank since their queue times are much shorter on average.