35 minutes on the treadmill is great!!! I aim for 10 minutes on the treadmill, which usually turns into 20 or 30, but if my goal is 10 it doesn't seem so overwhelming! Plus if I only manage 10 because I am tired or not feeling well, I don't feel like I have failed.
So much of what we do, while trying to lose weight is "self talk" and it is very easy to self talk ourselves into failure! Part of that is by setting unreasonable goals for ourselves, not being able to meet those goals, and giving up in despair over our "failures"!
So instead, set yourself lower goals, ones you can reach....if you surpass them you will feel very proud of yourself and will give yourself lots of positive vibes, which will not only make you happy with yourself, it will motivate you to keep going!!