1-12 songs ready to be mixed

I have 12 songs that I’ve mixed and mastered myself, but they just don’t sound like I imagined them to. I’m looking for a mixing and mastering engineer to provide me with a quote to get an idea how much it would cost me to get either all of them or just a few of them done professionally.

Additional info:
I need it by 17 March, 2023. I'm hoping to find a good mixer that can work with my limited budget. I'm an indie artist. I'll need you to master it too if possible. The song has somewhere between 10 and 30 tracks recorded that need mixing. The tracks are cleaned, tuned, and and the song is ready to be mixed. .