I need some help. I have been trying to learn more about how to help my shape get the most out of what I am doing exercise wise. I am a "spoon" shape I guess, very slim upper body with good shape and not at all flabby, BUT My BUTT,Thighs and hips are very heavy and wide, much too heavy so I look fat and forget a bathing suit right now!

I know I do have excess fat as I have some unsightly cellulite that I REALLY want to rid of. I have been walking for 2 years since my 2 1/2 year old was born, I try to walk at a fast pace for 3-4 miles a day or every other day at least, I have 4 young ones so time is limited. I started jogging about 2 months ago and go at a slow pace that is comfortable for me but I get a good sweat going.
O.K. MY MAIN question and I NEED HELP HERE is I just read some information saying that lunges and squats are NOT good for my shape! I JUST started adding these into my routine with jumprope AND very small weights(since I just started, I am using 5lbs each) for my upper body (I do use the weights with the lunges too ) as I read elsewhere weight training is ESSENTIAL to lose cellulite and tone your body.., I SOOOOO want to do the right thing and create a nice body for myself and something I can do inexpensively at home. Should I continue with the lunges and squats?? I hope I can but if it will only make my lower body BIGGER I obviously don't want that!!
I am going to try to do the weights every other day and if the squat/lunge thing is o.k. those on the days I do weights.., I try to do 1 hour Cardio every day alternating what I do...,
Thanks for reading through this and Thank you for your help in advance!!