Jay,
ALL planes pull to the left during the take off run to some degree or other. It's normal, and counteracted with right rudder.

You need to find help, like a local club instructor. As you've discovered, handling a glow plane is herder than it looks, or than you might think. If you're having that much trouble on the ground, it'll be five times worse in the air, and you're most likely to wind up with a pile of sticks about 10 seconds after take off.

If you were in the US I could give you a link that would help find a few local clubs. I have seen a few others on RCU from Ireland, so hopefully one of them will respond.

Good luck, and welcome to RCU.
Dennis-