What should I do? never done anything but cario in the past

First of all, congratulations on losing 50lbs! That's a true accomplishment.

A lot of people get wrapped up into the cardio game for losing weight and avoid lifting so you're not alone. However, body composition is much more than just the # on the scale as you're starting to see.

You should look up some beginner workouts online (bodybuilding.com just released this awesome 30 day program for beginners actually). Hit the gym or do some exercises at home to start building that muscle. There are a ton of bodyweight exercises you can start with:

Squats, Lunges, Push-Ups, Abdominal Work, Pull-Ups, Tricep Dips, etc. etc. I could go on but I believe that visuals are going to help you.

Go to youtube and type in at home strength workout. I'm sure some good things will pop up!

All the best,
Daniel

Last year I did Jillian Michaels' 30 Day Shred and had amazing results. It's cheap, you barely need any equipment, and it's a really great first step into beyond-cardio land. I thought it was super nice being able to just do it at home.

It was a really nice introduction to all kinds of really effective body weight exercises, too.

I have been jogging/walking for a few months now but I know cardio doesn't do much.
I would like to change my butt and thighs, And I do have some saggy skin on my lower stomach.
I am 24 and have had one kid so I'm not sure if the saggy skin will go away even with working out.


Any advice on starting non cardio lifestyle?

Sounds like what you need is both more intensity in your CV work, and adding resistance work. CV work builds your base capacity, resistance work helps with the composition aspect.

Subject to the resources available you can make some gains just with bodyweight resistance training, and then as you start to see results you can make some more decisions around direction. Nerdfitness is mentioned upthread, equally You Are Your Own Gym/ Body By You or Convict Conditioning are credible programmes that'll take you some way before you may want to start thinking about accessories.

AS far as the CV is concerned, if you're pootling along at slow speed, then it's inevitable that you're not doing much for either your CV fitness or your body composition. With that I'd suggest some structure to cranking up your pace and distance. That'll help with leg strength and core, in a way that's complementary to the resistance training. Essentiallyif you feel that your CV work isn't doing very much, then you're not putting enough effort in to get results.

It's not an either/ or situation, you'll get best general results from a combination of both.