Howdy all,
First of all -kudos to you for getting it in gear!! Sitting on the couch thinking about what can be done is way easier than actually tackling it.
I started with about the same weight to lose and some knee complaints. Try adding this supplement to your daily routine -glucosamine/chondroitin. It aids the lubrication of the joints and the manufacture of cartilage -both very important things. It also helps relieve some arthritic symptoms.
When I first started, I literally couldn't run to save my life. Today I race my 10 year old to the door. (she wins, but that's ok
) Taking off over 50# and taking the supplements really made a huge difference.
All the best!