Its a straight shot about 25 foot down the chimney then it makes about a 10 degree turn one way followed by a 10 degree turn in the opposite direction. I think it got stuck on the first turn. I can lift the liner up and push downwards as hard as I feel safe but at 40' in the air with just a ladder I can feel the rest of the liner swinging around and it is a bit unnerving. I decided it was too much for what I am comfortable with so I was going to call a professional. Who will be willing to come out and just get the liner the rest of the way in? I don't mind doing the rest but it probably won't take but 15 minutes for anyone who knows what they are doing. What should I do?