Hi much to do,
Huge congratulations on your progress. Be proud!
I started lifting weights just over two years ago--I started out pretty ill and with all kinds of body aches, needing to lose 50 pounds. I'm glad that you have been encouraged to do resistance training, it will make all the difference in how you feel over all and at whatever weight you are, you will look better with nice firm muscle underneath.
I started out with the body for life program. It's now considered a little old fashioned as it uses bodybuilder splits, but it's good because it tells you EXACTLY what to do. It's a little intense for beginners as it's 6 days a week though. In retrospect, I think in the shape I was in it would have been better to do just the weight workouts and drop the high intensity cardio.
I got a lot of information from Krista Scott-Dixon:
Women's Weight Training
Her site is great overall and will give you lots of ideas.
Not being able to join a gym is a bit of a problem if you are like me and need to get out of the house since the siren song of the couch is very loud at home. But there are lots of bodyweight programs you can use to get your overall fitness up.
Once you are able to join a gym, I can't say enough about Alwyn Cosgrove's workouts from the New Rules of Lifting for Women. Those workouts completely changed my posture and fitness level. I've now lost about 40 lbs and I am fitter and a smaller size than I was in my 20's--I'm now 46.
Best of luck to you. These forums are great for support, be sure to use them on your journey, it makes a huge difference to have a support system.