Please help with weight

I feel like the reason I'm having trouble with ttc is because I'm overweight and according to my Bmi I'm obese. I'm 19 and almost 240 lbs I try to workout but at this point I can only go on a walk by myself going to the gym I prefer to go with someone but lately have no one. I'm embarrassed idk where to turn I know I shouldn't be in GLOW for weight loss help but I'm desperate.