wetsuit tear

Hi guys, I did a search on repairing wetsuit tears but all I could find were repairs on exposed damage.
After my last session when hanging it to dry I saw this on the knee of my xcel offset 4/3:

On the outside is the knee pad, on the inside is a liner. The hole is the neoprene between the 2 layers... I don't know how I did this, but is this something I should be able to manage myself, or is this something to take to a shop? I do have that awful aquaseal-toluene repair stuff. If I do try to repair it, I clearly have to cut through the liner to get to the hole. How would the cut be fixed after repairing the hole?
The darn suit... I wondered if it was borderline too small when I bought it and taking it off is such a workout. I wonder if I did it while trying to wrench it off over my feet. Don't suppose anyone has any tips on getting them off without being too hard on it?
Thanks
After my last session when hanging it to dry I saw this on the knee of my xcel offset 4/3:

On the outside is the knee pad, on the inside is a liner. The hole is the neoprene between the 2 layers... I don't know how I did this, but is this something I should be able to manage myself, or is this something to take to a shop? I do have that awful aquaseal-toluene repair stuff. If I do try to repair it, I clearly have to cut through the liner to get to the hole. How would the cut be fixed after repairing the hole?
The darn suit... I wondered if it was borderline too small when I bought it and taking it off is such a workout. I wonder if I did it while trying to wrench it off over my feet. Don't suppose anyone has any tips on getting them off without being too hard on it?
Thanks