Thank God Jesus did for us what we could never do for ourselves, eh?
Absolutely agree ! there are things He did and does that we will never be able to do for ourselves...so we are not talking about those things. But does that mean we have to be forever helpless like little children or maimed and handicapped people ? No, Jesus HEALS us of all our weaknessess and infirmities so we can become functional Beings who might otherwise never be able to do anything worthwhile.
Don't sell God short at what He can do for us, but we need to trust Him He will still look after us once we let go of His apron-strings - and He will ! Jesus is not going to carry us for all eternity - one day He will deliver us into His Father's Kgd and we'd better be able to walk - it is not a nursery for the helpless. NOW is the time to be healed and learn to walk.