If only our body matched our spirit and will.
You are doing the right thing by continuing to work at it, because you know you won't always be in this same place. With all of this work....you will get where you want to be. It may not be as quickly as you would like, but you will get there!
I found a great quote the other day, and I have been reading it often.
The essence of optimism is that it takes no account of the present, but it is a source of inspiration, of vitality and hope where others have resigned; it enables a man to hold his head high, to claim the future for himself and not to abandon it to his enemy.