Hello,
Seems like the problem might be the fact that you are wearing glasses. I don't remember if you can fit a corrected eyepiece on the M2. If so, you should go that route. Framing wearing glasses doesn't work well with the M2 and you'll end up scratching them. If you can't, just use it without your glasses.. As long as you can align the two images, your photos will be focused, even if you can't see well through the viewfinder.
Otherwise it's just a matter of getting used to your camera. Get your M2 fixed, your frustrations is coming for a great part from that.
I use a phone app for a meter, and it works great. Now I often just guess and I'm usually within one stop. he key is to pre-meter, not meter every shot. You'll get used to not using one very quickly.
I love my M2 and I am coming from years of using an F3. I adapted instantly because I didn't fight the Leica or tried to use it like an SLR. I just kept taking photos, didn't try to like it, I just used it. The M2 is a marvel of engineering and simplicity. It doesn't take long to adapt to it.
Today my F3 mostly stays home, especially that it has the MD-4 motor drive on it. The M2 is light and fast, and I always set the exposure for the conditions of the day, which in Florida is mostly F16 1/500th! All I have to do then is compose and click! At F16 with a 35mm, focus is seldom needed.
Get your M2 fixed and keep using it, you'll be inseparable in a matter of weeks...
Gil.