Start with what is easiest and fun for you. Don't worry about how much you can do, or insignificant it may seem to your long term goal, just start! It's all about making a habit of it, even if it is 5 min walking in place a day, or 10 jumping jacks! Create a habit of that small step and build from there.
Also, learn what keeps you motivated.
Is it a friend checking in on you, keeping you accountable? livinghealthier.itstimetexa...
Is it joining an online zumba class?
Is it a video that always gets you pumped up?
Is it a competition through the community challenge ?ittcommunitychallenge.com/
Check these out and let me know what you learned about yourself today