i have asked a girl out by text, she agreed but no date was set (first mistake). Afterwards in person i make a passing reference to it to try and seal a date, i get the "next week should be good." I casually respond "sweet." and continue our conversation (second mistake) I also believe our conversation caused her to lose some level of interest in me, in hindsight i may have been too casual with her or demonstrated some undesirable trait through the hour long conversation we had (should have cut it off on a high). In which i was quite casual and open with her, asked about past relationships (third mistake)

Now i have the inkling that initiating to meetup with her next week will likely do more harm then good. It will be the third time i have mentioned it and at this point i feel two times is already the limit. She is aware of my interest and in my experience girls will get in touch with you if they reciprocate the attraction. She is a bit on the shy side but i still know the more i open my mouth the more chance there is of messing it up. Should i continue the no contact with her and wait for her to make an effort or should I check in next week and see her response?

keep in mind i will be seeing her on an ongoing basis for some time (one class a week together). So if worst comes to worst, I want to at least plant a seed here and then focus my attention elsewhere. The most important thing i don't want to lose is value in her eyes and if some has been lost already, to give myself the best chance at recovering it (i'd probably fair much better if i didn't give a shit).

Do you want to admire her from afar while other guys fuck her and that 'seed' of yours grows? Or actually date her?

Like really... man.

Ask her out again. Confidently. On the phone or to her face. Say a specific date and time. Don't make flaky plans with no firm date and time - they are way too easy for her to flake on.