Welcome!
I will suggest looking into nutrition. I use http://www.fitday.com to ‘count’ my calories everyday. Whenever I see my weight start to go up, I look and sure enough, my fat% or total calorie intake (vs what calories I use in exercising) is ALWAYS the culprit.
You DO have to eat enough...especially if your exercising for long periods, but everyone seems to over compensate.
Since I don’t know your particular situation, that’s where I’d start....
I’d keep doing the LSB, but add weights in 2-3 times a week. After doing cardio, your metabalism continues to burn at a faster than normal rate for 3-4 hours....after weights, 6-8 hours longer -
The three components to be ‘funtionally fit’
1)Cardio
2)Resistance training (weights etc)
3)Flexibility (stretching, yoga, palates)
Most of all, find what you LOVE to do (exercising-wise) and set a goal to hit.
It will give you something to shoot for, and the emotional boost you get by hitting the goals are a great self esteem booster! and keeps you on track!
Good luck and welcome!