You might want to see your audi to let him/her know that your hearing aids feel uncomfortable. They may be able to file down your earmolds for a more comfortable fit or use a different earmold than the ones you're using now.
As for your left hearing aid sounding softer than your right, I would also let your audi know that as well. It sounds like some adjustments need to be made in order for them to sound more balanced.
When you say your voice sounds weird, does it sound as if you're in a barrel? If so, you may need a vent put in your earmolds.
Hang in there! Wearing hearing aids do take some getting used to at first, but having them is well worth it once you have them adequately programmed and fitted.
Hope this helps!