Second the other commenter. Measure your heart rate and stay within a lower zone.

Most likely this means you will be walk-running at the beginning or even just walking up a steep hill. Running is an activity of many small incremental gains. Every week you can go a little tiny bit further but if you amortize that over a year it makes a big difference.

Many go into running too fast and hard which leads them into not liking it because they feel absolutely miserable the entire time or they injure themselves due to bad form.

I had a good physical therapist which took me from nothing and for the first few months I wasn’t even running but doing foot and ankle strengthening because that part of my kinetic chain was so weak.