My two bits. Rather than just abandon this, you might use it as a good learning exercise. Go through each track, list to the source, try some EQ, make a mental note of what could have been better in the tracking, how you were using EQ, etc. Bring the mix back not for perfection, but to make sure you have a good understanding.
When you start your next project, now you have a lessons learned and can avoid issues, know what issues you can't avoid, but know how they are going to be fixed, etc. I think giving up on it just now will not help you in the learning process.
Just thoughts, but I am sure you want your next effort to be easier and improved, this is how it is done.