Howdy Mary and welcome to a good place -
First off, if you are smoking, please quit. If you have just quit, you need to have another PFT done by a pulmonologist. If the doc that gave you the DX isn't a pulmonologist, make an appointment to see one. The measurements will change after being quit for a few months.
Exercise is the second best thing you can do, walking or treadmill, yoga, weight training, etc..
Eating a balanced diet.
Taking the medications. Most enable you to breath a little easier.
Home Oxygen. If your blood O2 is falling beneath 88% you should ben on home oxygen. The O2 will provide much needed energy to your systems.
Now the not so good news. Currently there is no way to repair the damaged portions of your lungs. There are procedures that can reduce the volume of the dead lung tissue, thereby making room for the good tissue to expand. There are transplants that can be done. These are good questions to ask your pulmonologist about.
Many of us have has this disease a long time, so look around you'll find a wealth of knowledge and help here...

Hugs,
Dennis

Welcome to our group! Your English looks good to me. Hugs.

Thank you very much. I quit smoking 38 days ago, since than I walk every day, buy I have to stop to rest every 100 m maube because I'm weak and recovering of the hospital.I hope that will change. I have a pulmologist but they don't have time to give answers to all my questions. Do you know how much better can mesurements be after being quit for a few months?

Your pulmonologist doesn't have time to do their job and answer your questions? Sounds like it's time to go shopping for one that has an extra few moments to explain things. You are paying for his time.
There is no way to tell how much improvement there will be. Everybody is different. This is a time where you have to be patient and keep up the exercise...

Hugs
Dennis

There is always hope Mary. Has your lung capacity dropped quite dramatically since you quit smoking? I'm a bit of an unusual case because my doctor gave me a COPD diagnosis and then reversed it. What I can speak about is this. When you quit smoking during a bout of bronchitis your lungs can rebel very dramatically. Within a week of quitting smoking I had drastic trouble breathing including chest constriction, a very heavy feeling of the chest and though I don't believe I was short of oxygen I had a very hard time drawing breath in. I have read on other quitting smoking sites that this reaction is not uncommon when someone quits smoking during a very bad chest cold or during bronchitis or other infection. It is now getting close to 2 months and for the last 2 weeks improvement has come quite dramatically. I realise our situations are not identicle. I have no idea how much function you had before your recent hospital stay, nor how much function a person with emphysema can expect to lose during an exacerbation period. I do say this to bring you some hope that you MAY see some more improvement the further you get from the date you quit smoking. Don't even take a single puff if only for that reason alone, if you need more reasons than you already have.

As for the standard numbers from the information I have recently seen from a quit smoking site...... It says.... "within 3-9 months of quitting smoking, lung volume will increase by 10%." Also, circulation, blood pressure and a bunch of other things improve. This info was from a UK lung association timeline for 10 minutes to the 15 year point.

Good luck with your quit smoking bid.

Mary I am so sorry that evil emphysema is part of your life.
I have emphysema as well and It is what it is,
I was devastated and was thinking this is the end and very painful.,when I was diagnosed.
I take all my movements very slowly no rush .I walk a lot and very slowly,I eat slowly,do thinks in my house slowly .I make sure I do nut rush ,to avoid exsosted feeling.
I cope well.
I made peace with me and my life and I will never reach old age,which I never wonted in the first place.
There are days I still think will it be painful and miserable when
is near the end but then people here at DS are very helpful ,they have COPD but live normal life and I always admired bravery.
Now every minute in my life is precious,I do not seek cure ,miracle
I live my life .
Take care and here people will help you and there is so much to
learn.