Hello!!!
And Welcome back!
Sometimes it takes something like your heart scare to make you sit down and really think about what you can change to help the future.
So well done for making a plan!
I am on MFP also and the days that I don't track are not great days. So everything that I eat, good days and bad, I track it. It is also in sync with my iphone health app which tracks my steps, Its not a great step tracker, but I forget that it is there, just does everything automatically which I like.
Do you have any weights? or small dumbells? some of the youtube videos on these are very good