Over 100 pounds to lose

I joined the site awhile ago but just started using it last week. I have so much weight to lose and it's overwhelming at times. I have struggled with my weight since I was about 10 years old and going up and down my whole life is just getting old and I really need to make a lifestyle change if this is going to work for me. I have done numerous diets and nothing has kept the weight off. My parents are aging and their health is deteriotating because of living an unhealthy lifestyle. I don't want to have the health problems they have, so here I am. I am hoping to meet a few friends on here to travel through this journey with me.