A really good rule of thumb is NEVER EVER go so far that you have to carry the pup home.
That may mean very short walks at first but it is more important for your pup to learn how to deal with the world at her level than to walk at the moment.
Good food, plenty of free play and exposure to as many environments as possible must be balanced with good sleep time.
Pick the puppy up ONLY as a last resort - give her time to rest, show you are not swayed by crying by ignoring it and make sure that you give enough time - even for short walks - so that you can spend time ignoring and resting.

Can I also suggest that you get the pup to the vet and voice your concerns? She may have hip problems or other joint problems or heart problems that need medication.
If all checks out - don't let this puppy make you her slave!