you are an acoustic instrument trying to maintain a balanced volume with electric instruments. Your lip will give out quickly since you have to play LOUD all the time.
Get yourself some in ear monitors(that you can adjust the volume) and a small mic. Samson has some good products.
Also, Ed Kennedy gave you some great advice. You'll probably need to go to a hearing specailist to get a mold made of your ears but it will be well worth it if you decide to continue to play in loud electric bands.