That's great!! Slowly starting out is the best way to get your body used to it, but also to not injure yourself.
Just to pop in with a few suggestions for the elderly like myself:
A nutritional supplement called D-Ribose will really aid in both exercise ability and the recovery phase afterward. It increases overall energy and improves heart function, has to do with increasing ATP production which powers the heart up among other things, creatine along with it is also great if your kidneys are good, but should be at the advice of a doctor since it can cause problems if they are not. Anyone with an impaired heart function should consider using Ribose, it can really help. (there are scientific studies to back this up, it isn't an iffy thing)
Walking on uneven terrain is better than walking on flat surfaces, hiking is even better if you are still able (walking is anything that doesn't require a machete and ropes to get there, hiking is everything that does).
For weights consider the Kettle Bell, it is very versatile and lends itself to frequent use, I've learned that hand strength is probably more important than lifting ability when using these since it's kind of easy to throw one through a wall when doing the more vigorous routines or drop one on your head or foot, lighter is probably better than heavier and they come in assorted weights (I use a 15 pounder mostly). All sorts of exercise routines available on YouTube and you can easily develop your own for specific purposes that are important to you.
Never go more than half as far as you think you can, it would be embarrasing to reach your intended goal exausted and need to call air rescue to get back.
Again, this is aimed at the elderly, the younger and healthier have more options.
