Set realistic short term and long term goals.
Have a reasonable exercise schedule.
Make it a priority and do it first.
Identify alternative activities for rainy days, when friends visit, and for going out of town.
Progress gradually.
Record and monitor progress.
Take your pulse.
Don’t overdo it which can cause muscle soreness & orthopedic injuries.
If you skip a day or two, don’t blame yourself.
Select the type of exercises you enjoy.
Find someone to exercise with.
Stretch to avoid chronic muscle soreness.
Give yourself a rest day in between the exercise days.
Exercise first, make it a priority, do it early in the day. e.g. in the morning.